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7SR224 Argus Applications 

 

2.8 

High Impedance Restricted Earth Fault Protection (64H) 

Restricted Earth Fault (REF) protection is applied to Transformers to detect low level earth faults in the 
transformer windings. Current transformers are located on all connections to the transformer. During normal 
operation or external fault conditions no current will flow in the relay element. When an internal earth fault occurs, 
the currents in the CTs will not balance and the resulting unbalance flows through the relay.  

The current transformers may saturate when carrying high levels of fault current. The high impedance name is 
derived from the fact that a resistor is added to the relay leg to prevent relay operation due to CT saturation under 
through fault conditions. 

The REF Trip output is configured to provide an instantaneous trip output from the relay to minimise damage from 
developing winding faults. 

The application of the element to a Delta-Star transformer is shown in Figure 2-5. Although the connection on the 
delta winding is more correctly termed a Balanced Earth-Fault element, it is still usually referred to as Restricted 
Earth Fault because of the presence of the transformer. 

 

 

 

 

 

 

 

 

 

 

Figure 2.8-1    

Balanced and Restricted Earth-fault protection of Transformers 

Balanced

Earth Fault

Restricted

Earth Fault

 

The calculation of the value of the Stability Resistor is based on the worst case where one CT fully saturates and 
the other balancing CT does not saturate at all. A separate Siemens Protection Devices Limited Publication is 
available covering the calculation procedure for REF protection. To summarise this: 

The relay Stability (operating) Vs voltage is calculated using worst case lead burden to avoid relay operation for 
through-fault conditions where one of the CTs may be fully saturated. The required fault setting (primary operate 
current) of the protection is chosen; typically, this is between 10 % and 25 % of the protected winding rated 
current. The relay setting current is calculated based on the secondary value of the operate current, note, 
however, that the summated CT magnetising current @ Vs must be subtracted to obtain the required relay 
operate current setting.  

Since the relay operate current setting and stability/operating voltage are now known, a value for the series 
resistance can now be calculated. 

A check is made as to whether a Non-Linear Resistor is required to limit scheme voltage during internal fault 
conditions – typically where the calculated voltage is in excess of 2kV. 

The required thermal ratings for external circuit components are calculated. 

 
 

©2010 Siemens Protection Devices Limited  

 

 Chapter 7 Page 20 of 50 

Содержание 7SR224

Страница 1: ...Reyrolle Protection Devices 7SR224 Recloser Controller Overcurrent Relay Answers for energy ...

Страница 2: ...4 Argus Contents Contents 1 Description of Operation 2 Settings Configuration Instruments 3 Performance Specification 4 Data Communications 5 Installation 6 Commissioning and Maintenance 7 Applications Guide ...

Страница 3: ...whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2010 Siemens Protection Devices Limited 7SR224 Recloser Controller Overcurrent Relay Document Release History This document is issue 2010 09 The list of revisions up to and including this issue is 2008 03 First issue 2008 06 Second issue 2009 04 Third issue 2009 09 Fourth issue 20...

Страница 4: ... Protection 67G 23 3 3 2 Instantaneous Measured Earth Fault Protection 50G 24 3 3 3 Time Delayed Measured Earth Fault Protection 51G 25 3 4 Current Protection Sensitive EF 67SEF 51SEF 50SEF 26 3 4 1 Directional Control of Sensitive Earth Fault Protection 67SEF 26 3 4 2 Instantaneous Sensitive Earth Fault Protection 50SEF 27 3 4 3 Time Delayed Sensitive Earth Fault Protection 51SEF 28 3 5 Current P...

Страница 5: ... 59 5 5 Broken Conductor 46BC 60 5 6 Trip Circuit Supervision 74TCS 60 5 7 Inrush Detector 81HBL2 61 5 8 Battery Test 62 5 9 Capacitor Test 63 5 10 Power Quality 27S 59S 64 5 11 Demand 64 Section 6 Other Features 65 6 1 Data Communications 65 6 2 CB Maintenance 65 6 3 Output Matrix Test 65 6 4 Data Storage 66 6 4 1 General 66 6 4 2 Event Records 66 6 4 3 Waveform Records 66 6 4 4 Fault Records 67 ...

Страница 6: ...al Overload Protection 49S 34 Figure 3 10 1 Logic Diagram Under Over Voltage Elements 27 59 35 Figure 3 11 1 Logic Diagram NPS Overvoltage Protection 47 36 Figure 3 12 1 Logic Diagram Neutral Overvoltage Element 37 Figure 3 13 1 Logic Diagram Under Over Frequency Detector 81 38 Figure 4 1 1 Typical Autoreclose Sequence with 3 Instantaneous and 1 Delayed trip 41 Figure 4 1 2 Basic Autoreclose Seque...

Страница 7: ...imited Chapter 1 Page 5 of 70 Symbols and Nomenclature The following notational and formatting conventions are used within the remainder of this document 1 Setting Menu Location MAIN MENU SUB MENU 2 Setting Elem name Setting 3 Setting value value 4 Alternatives 1st 2nd 3rd ...

Страница 8: ...s precaution can result in injury to personnel or damage to equipment 1 2 External Resistors Where external resistors are fitted to relays these may present a danger of electric shock or burns if touched 1 3 Fibre Optic Communication Where fibre optic communication devices are fitted these should not be viewed directly Optical power meters should be used to determine the operation or signal level ...

Страница 9: ...70 5 101 and Modbus RTU user selectable setting 1 4 3 Spare 13 0 Protection Function Packages 14 Standard version included in all models 2 4 6 8 C 27 59 Under overvoltage 27 59 Under overvoltage Sag swell 37 Undercurrent 46BC Broken conductor load unbalance 46NPS Negative phase sequence overcurrent 47NPS Negative phase sequence overvoltage 49 Thermal overload 50BF Circuit breaker fail 51V Voltage ...

Страница 10: ...1V IL3 IC 81 HBL 2 60 CTS 60 VTS I4 IG ISEF 74 TCS x3 NOTE The use of some functions are mutually exclusive 67 50 x4 67 51 x4 67 50 x4 67 50 x4 67 51 x4 67 51 x4 64 H 27 59 27 59 x4 27 59 x4 27 59 x4 47 x2 79 59N x2 Note Example shows Voltage Config Van Vbn Vcn 81 x4 67 50G x4 67 51G x4 67 50S x4 67 51S x4 27S 59S 27S 59S 27S 59S Batt Test Cap Test 25 Figure 1 5 1 Functional Diagram of 7SR224 Rela...

Страница 11: ...ng options of configurable LEDs 2 Processor module 3 Analogue Input module 4 x Current 4 or 6 x Voltage 4 Power Supply PSU and Basic Binary Input BI and Binary Output BO 5 Binary Input Output Module 6 Data Comms module optional 2 2 Case The relays are housed in cases designed to fit directly into standard panel racks The case has a width of 260mm E10 312mm E12 and a height of 177 mm 4U The require...

Страница 12: ...rated fuse from 30V dc to 220V dc In the event of the supply voltage level falling below the relay minimum operate level the PSU will automatically switch itself off and latch out this prevents any PSU overload conditions occurring The PSU is reset by switching the auxiliary supply off and on 2 5 Operator Interface Fascia The operator interface is designed to provide a user friendly method of cont...

Страница 13: ...ED is illuminated to indicate that a user selectable function s has picked up The LED will self reset after the initiating condition has been removed Functions are assigned to the PICKUP LED in the OUTPUT CONFIG PICKUP CONFIG menu TRIP LED This red LED is steadily illuminated to indicate that a user selectable function has operated to trip the circuit breaker Functions are assigned to the Trip LED...

Страница 14: ...nputs are provided on the Analogue Input module Terminals are available for both 1A and 5A inputs Current is sampled at 1600Hz for both 50Hz and 60Hz system frequencies Protection and monitoring functions of the relay use either the Fundamental Frequency RMS or the True RMS value of current appropriate to the individual function The waveform recorder samples and displays current input waveforms at...

Страница 15: ...es that the BI is energised when no d c is applied Inversion occurs before the PU DO time delay see fig 2 8 1 Each input may be mapped to any front Fascia indication LED and or to any Binary output contact and can also be used with the internal user programmable logic This allows the relay to provide panel indications and alarms Event BI 1 Binary Input 1 1 Inverted Inputs BI 1 inverted BI 1 P U De...

Страница 16: ...coil current When the relay is withdrawn from the case all normally closed contacts will be open circuited This should be considered in the design of the control and protection circuitry Notes on Pulsed Outputs When operated the output will reset after a user configurable time of up to 60 seconds regardless of the initiating condition Notes on Self Reset Outputs Self reset operation has a minimum ...

Страница 17: ... This will result in de energisation of any binary output mapped to protection healthy and flashing of the protection healthy LED If a successful reset is achieved by the relay the LED and output contact will revert back to normal operational mode and the relay will restart 2 11 1 Protection Healthy Defective When the relay has an auxiliary DC supply and it has successfully passed its self checkin...

Страница 18: ...e constantly monitored and used to provide alarms and operation blocking for quiescent capacitor voltage levels which are out of limits Battery and capacitor tests are initiated at user set intervals typically once per week month The condition and state of the Recloser battery and Recloser capacitor are assessed any unhealthy states are identified and can be alarmed Battery and capacitor tests are...

Страница 19: ...he reverse operate zone is the mirror image of the forward zone Voltage polarisation is achieved for the phase fault elements using the quadrature voltage i e at unity power factor I leads V by 90 Each phase current is compared to the voltage between the other two phases i e for normal phase sequence 1 2 3 IL1 V23 IL2 V31 IL3 V12 When the device is applied to reverse sequence networks i e 1 3 2 th...

Страница 20: ...ing voltage is below this level no directional output is given and operation of protection elements set as directional will be inhibited This prevents mal operation under fuse failure MCB tripped conditions where noise voltages can be present Figure 3 1 1 Logic Diagram Directional Overcurrent Element 67 2010 Siemens Protection Devices Limited Chapter 1 Page 18 of 70 ...

Страница 21: ...ion can be set using 50 n Dir Control setting Directional logic is provided independently for each 50 n element Operation of the instantaneous overcurrent elements can be inhibited from Inhibit 50 n A binary or virtual input or function key 79 P F Inst Trips 50 n When delayed trips only are allowed in the autoreclose sequence 79 P F Prot n Trip n Delayed 50 n Inrush Action Inhibit Operation of the...

Страница 22: ...rmance Specification The 51 n Reset setting can apply a definite time delayed reset or when configured as an ANSI characteristic an ANSI DECAYING reset If ANSI DECAYING reset is selected for an IEC characteristic the reset will be instantaneous The reset mode is significant where the characteristic has reset before issuing a trip output see Applications Guide A minimum operate time for the charact...

Страница 23: ... IL3 Rev 1 1 1 Non Dir 51 n VTS Action Off Inhibit VT Fail 51 n Min Operate Time IL1 IL2 IL3 50 51 Measurement See Voltage Controlled Overcurrent 51V L1 81HBL2 51c 51 n Inrush Action Off Inhibit L3 L2 L1 L2 81HBL2 L3 81HBL2 c Pickup trip c Pickup trip c Pickup trip Inhibit 51 n 51 n Element Enabled Disabled 79 P F Inst Trips 51 n 79 P F Prot n Trip n Delayed AUTORECLOSE Figure 3 1 3 Logic Diagram ...

Страница 24: ...voltage falls below VCO Setting The voltage levels used for each phase over current element are shown in the table below Relays with a Ph N connection automatically calculate the correct Ph Ph control voltage Current Element Control Voltage IL1 V12 IL2 V23 IL3 V31 The Voltage Controlled Overcurrent function 51V can be inhibited from VCO VTSAction Inhibit Operation of the VT Supervision function VL...

Страница 25: ...within the reverse operate zone Typically the forward direction is defined as being away from the busbar or towards the protected zone The Characteristic angle is the phase angle by which the polarising voltage must be adjusted such that the directional detector gives maximum sensitivity in the forward operate zone when the current is in phase with it The reverse operate zone is the mirror image o...

Страница 26: ...ments the direction of operation can be set using 50G n Dir Control setting Directional logic is provided independently for each 50G n element Operation of the instantaneous measured earth fault elements can be inhibited from Inhibit 50G n A binary or virtual input or function key 79 E F Inst Trips 50G n When delayed trips only are allowed in the autoreclose sequence 79 E F Prot n Trip n Delayed 5...

Страница 27: ...I characteristic an ANSI DECAYING reset If ANSI DECAYING reset is selected for an IEC characteristic the reset will be instantaneous The reset mode is significant where the characteristic has reset before issuing a trip output see Applications Guide A minimum operate time for the characteristic can be set using 51G n Min Operate Time setting A fixed additional operate time can be added to the char...

Страница 28: ... polarising Voltage polarisation is achieved for the earth fault elements by comparison of the appropriate current with its equivalent voltage I0 V0 The characteristic angle can be user programmed to any angle between 95 and 95 using the 67SEF Char Angle setting The voltage is the reference phasor Vref and the 67SEF Char Angle setting is added to this to adjust the forward and reverse zones The ce...

Страница 29: ...directional elements the direction of operation can be set using 50SEF n Dir Control setting Directional logic is provided independently for each 50SEF n element Operation of the instantaneous earth fault elements can be inhibited from Inhibit 50SEF n A binary or virtual input or function key 79 SEF Inst Trips 50SEF n When delayed trips only are allowed in the autoreclose sequence 79 SEF Prot n Tr...

Страница 30: ...lected for an IEC characteristic the reset will be instantaneous The reset mode is significant where the characteristic has reset before issuing a trip output see Applications Guide A minimum operate time for the characteristic can be set using 51SEF n Min Operate Time setting A fixed additional operate time can be added to the characteristic using 51SEF n Follower DTL setting For the directional ...

Страница 31: ...to ensure that this element provides a high impedance path If I4 is utilised for this purpose SEF protection cannot be used 64H Current Setting sets the pick up current level An output is given after elapse of the 64H Delay setting External components a series stabilising resistor and a non linear resistor are used with this function See Applications Guide for advice in specifying suitable compone...

Страница 32: ...51 n settings Where the Reduced Current setting is set to OFF reversion to 51 n settings will only occur at the end of the Drop Off Time If any element is picked up on expiry of Drop Off Time the relay will issue a trip and lockout If the circuit breaker is re opened before expiry of the Drop Off Time the drop off timer is held but not reset Resetting the timer for each trip could result in damagi...

Страница 33: ...re provided An inverse definite minimum time IDMT characteristic is selected from IEC and ANSI curves using 46IT Char A time multiplier is applied to the characteristic curves using the 46IT Time Mult setting Alternatively a definite time lag delay DTL can be chosen using 46ITChar When Delay DTL is selected the time multiplier is not applied and the 46IT Delay DTL setting is used instead The 46IT ...

Страница 34: ...37 n Setting sets the pick up current An output is given after elapse of the 37 n Delay setting Operation of the under current elements can be inhibited from Inhibit 37 n A binary or virtual input IL1 1 37 n 37 n Delay Inhibit 37 n 37 n Setting c 37 n Enabled Disabled IL2 IL3 Figure 3 8 1 Logic Diagram Undercurrent Detector 37 2010 Siemens Protection Devices Limited Chapter 1 Page 32 of 70 ...

Страница 35: ...percentage of the protected equipment s thermal capacity 49 Capacity Alarm setting For the heating curve 100 e 1 I I θ τ t 2 θ 2 Where θ thermal state at time t I measured thermal current Iθ 49 Overload setting or k IB The final steady state thermal condition can be predicted for any steady state value of input current where t τ 100 I I θ 2 θ 2 F Where θF final thermal state before disconnection o...

Страница 36: ...stant 49 Capacity Alarm 49 Overload Setting c cap alarm trip IL2 IL3 cap alarm trip cap alarm trip Inhibit 49 49 Therm Overload Enabled Disabled 1 1 Figure 3 9 1 Logic Diagram Thermal Overload Protection 49S 2010 Siemens Protection Devices Limited Chapter 1 Page 34 of 70 ...

Страница 37: ...t The sense of the element undervoltage or overvoltage is set by the 27 59 n Operation 27 59 Vx Operation setting The 27 59 n O P Phases setting determines whether the time delay is initiated for operation of any phase or only when all phases have detected the appropriate voltage condition An output is given after elapse of the 27 59 n Delay 27 59 Vx Delay setting The 27 59 n Hysteresis 27 59 Vx H...

Страница 38: ...ge level for the element The 47 n Hysteresis setting allows the user to vary the pick up drop off ratio for the element An output is given after elapse of the 47 n Delay setting Operation of the negative phase sequence voltage elements can be inhibited from Inhibit 47 n A binary or virtual input Inhibit 47 n 47 n Element Enabled Disabled 47 n 47 n Delay c 47 n Hysteresis 47 n Setting VL1 VL2 VL3 N...

Страница 39: ...ime Mult setting M s 1 M t Vs 3Vo op Alternatively a definite time lag delay DTL can be chosen using 59NITChar When Delay DTL is selected the time multiplier is not applied and the 59NIT Delay DTL setting is used instead An instantaneous or definite time delayed reset can be applied using the 59NIT Reset setting The second element has a DTL characteristic 59NDT Setting sets the pick up voltage 3V0...

Страница 40: ...uard setting The sense of the element under frequency or over frequency is set by the 81 n Operation setting 81 n Setting sets the pick up voltage level for the element An output is given after elapse of the 81 n Delay setting The 81 n Hysteresis setting allows the user to vary the pick up drop off ratio for the element Operation of the under over voltage elements can be inhibited from Inhibit 81 ...

Страница 41: ... of the CB position status is integral to the autoreclose functionality CB auxiliary switches must be connected to CB Closed and CB Open binary inputs A circuit breaker s service status is determined by its position i e from the binary inputs programmed CB Open and CB Closed The circuit breaker is defined as being in service when it is closed The in service status has a drop off delay of 2 sec thi...

Страница 42: ...d to these binary inputs include 79 Out edge triggered 79 In edge triggered CB Closed CB Open 79 Ext Trip 79 Ext Pickup 79 Block Reclose 79 Lockout 79 Reset Lockout Block Close CB Close CB 79 Trip Reclose 79 Trip Lockout 79 Line Check Hot Line In Hot Line Out Instantaneous Protection In Out Outputs Outputs are fully programmable to either binary outputs or LEDs Programmable outputs include 79 Out ...

Страница 43: ...s to be cleared quickly by the Inst trip s and permanent fault to be cleared by the combined Delayed trip The delayed trip must be graded with other Recloser CB s to ensure system discrimination is maintained i e that as much of the system as possible is live after the fault is cleared A HS trips to lockout setting is provided such that when the number of operations of elements assigned as HS trip...

Страница 44: ...ime expires before all the AR start signals are not received i e the CB has opened protection pickups have reset and the trip relay has reset the Relay goes to Lockout 79 Minimum Lockout Delay Sets the time that the Relay s Lockout condition is maintained After the last allowed Trip operation in a specific sequence the Circuit Breaker will be left locked out in the open position and can only be cl...

Страница 45: ...to close 5 The 79 Lockout binary input is active 6 At the end of the 79 Reclose Blocked Delay due to presence of a persistent Block signal 7 When the 79 Elem HS Trips to Lockout count is reached 8 When the 79 Elem Delayed Trips to Lockout count is reached Once lockout has occurred an alarm 79 Lockout is issued and all further Close commands except manual close are inhibited If the Lockout command ...

Страница 46: ...be set to either Inst or Delayed 79 P F HighSet Trips to Lockout Sets the number of allowed HighSet trips The relay will go to Lockout on the last HighSet Trip This function can be used to limit the duration and number of high current trips that the Circuit Breaker is required to perform if the fault is permanent and close to the Circuit Breaker then there is no point in forcing a number of Delaye...

Страница 47: ...9 P F Prot n Trip5 Not Blocked Blocked Blocked raises an output which can be mapped to a Binary output to Block an External Protection s fifth Trip Output 79 P F Extern Trips to Lockout Sets the number of allowed External protection trips Relay will go to Lockout on the last Trip These settings allow the user to set up a separate Autoreclose sequence for external protection s having a different se...

Страница 48: ...7SR224 Argus Description of Operation Figure 4 1 2 Basic Autoreclose Sequence Diagram 2010 Siemens Protection Devices Limited Chapter 1 Page 46 of 70 ...

Страница 49: ... conditions must be met is applied as a setting or can be disabled such that an indefinite period is allowed 4 3 1 Reclosure Modes The Synchronising element can be set to allow the autoreclose sequence to proceed for various system voltage conditions The voltage conditions selected must be met within the Synch Close Window time which is settable and starts at the end of the deadtime for autoreclos...

Страница 50: ...then it will be classed as dead until it has reached the live band area Similarly if a voltage is live it continues to be live until it has reached the dead band area This effectively allows for variable amounts of hysteresis to be set Figure 4 3 1 illustrates the voltage detector operation Note the area between the dead and live zones is not indeterminate When any voltage is applied to the relay ...

Страница 51: ...to e g some remote switching operations 25 Line Undervolts if enabled the line voltage has to be above the line under voltage setting value and also above 5V for an output to be given 25 Bus Undervolts if enabled the bus voltage has to be above the bus under voltage setting value and also above 5V for an output to be given 25 Volt Differential if enabled the difference between the line and bus vol...

Страница 52: ...uccessful reclosure of a parallel connection 4 3 8 System Synchronising Mode For the relay to issue a System Sync Close the following conditions have to be met Both the Bus and Line voltages must be considered Live by the Voltage Monitoring elements 25 System Sync Angle the phase difference between the line and bus voltages has to be less than the phase angle setting value and the phase angle has ...

Страница 53: ...such that the instant of closure is when the phase difference is zero The slip frequency must be less than the 25 COZ Slip Freq but greater than the 25 Split Slip setting to avoid reversion to Check Synchronising conditions Since this feature is part of the System Synchronising function 25 System Sync must also be set to Enabled Phase Difference Phase Decreasing SLIP Line U V Block Bus U V BLock V...

Страница 54: ...mer The Reclaim time will start each time a Close Pulse has timed out and the CB has closed Where a protection pickup is raised during the reclaim time the relay advances to the next part of the reclose sequence The relay goes to the Lockout state if the CB is open at the end of the reclaim time or a protection operates during the final reclaim time Blocked Close Delay The close command may be del...

Страница 55: ...Line In Out When Hot Line is enabled all autoreclose sequences are inhibited and any fault causes an instantaneous trip to lockout Figure 4 4 1 Logic Diagram Circuit Breaker Status 2010 Siemens Protection Devices Limited Chapter 1 Page 53 of 70 ...

Страница 56: ... Use of Nomenclature E1 I1 F1 O2 L1 Equation 1 Binary Input 1 XOR Function Key 1 AND NOT Binary Output 2 OR LED 1 When the equation is satisfied 1 it is routed through a pick up timer En Pickup Delay a drop off timer En Dropoff Delay and a counter which instantaneously picks up and increments towards its target En Counter Target The counter will either maintain its count value En Counter Reset Mod...

Страница 57: ...nter Target the output of the counter En 1 and this value is held until the initiating conditions are removed when En is instantaneously reset The output of En is assigned in the OUTPUT CONFIG OUTPUT MATRIX menu where it can be programmed to any binary output O LED L or Virtual Input Output V combination Protection functions can be used in Quick Logic by mapping them to a Virtual Input Output Refe...

Страница 58: ...UT MATRIX 50BF Mech Trip CB Fail outputs will be issued providing any of the 3 phase currents are above the 50BF Setting or the current in the fourth CT is above 50BF I4 for longer than the 50BF n Delay setting or for a mechanical protection trip the circuit breaker is still closed when the 50BF n Delay setting has expired indicating that the fault has not been cleared Both 50BF 1 and 50BF 2 can b...

Страница 59: ...age would be expected along with a PPS load current within the circuit rating Where PPS load current is detected without corresponding PPS voltage this could indicate a three phase VT failure To ensure these conditions are not caused by a 3 phase fault the PPS current must also be below the fault level The element has a 60VTS VPPS setting an 60VTS IPPS Load setting and a setting for 60VTS IPPS Fau...

Страница 60: ...ibit 1 or 2 Phase Fail V I V1 I1 3 Phase Fail I1 External Trigger 60VTS Ext_Reset External Reset 60VTS Delay VL1 VL2 VL3 Phase Seq Filter IL1 IL2 IL3 Phase Seq Filter V2 V0 I2 I0 V1 I1 Figure 5 2 1 Logic Diagram VT Supervision Function 60VTS 2010 Siemens Protection Devices Limited Chapter 1 Page 58 of 70 ...

Страница 61: ...occurs if it is known that the voltage measurement is not reliable A similar setting is available 79 LO Line VT Fail which when Enabled will provide a Lockout for a Line VT failure detected by the 60VTS function 5 4 CT Supervision 60CTS Normally the presence of negative phase sequence NPS current in a power system is accompanied by NPS voltage The presence of NPS current without NPS voltage is use...

Страница 62: ...nected into the trip circuit such that at least one input is energised when the trip circuit wiring is intact If all mapped inputs become de energised due to a break in the trip circuit wiring or loss of supply an output is given The 74TCS n Delay setting prevents failure being incorrectly indicated during circuit breaker operation This delay should be greater than the operating time of the circui...

Страница 63: ...een Phase Sum and Cross methods of measurement Phase Each phase is inhibited separately Sum With this method the square root of the sum of the squares of the second harmonic in each phase is compared to each operate current individually Cross All phases are inhibited when any phase detects an inrush condition An output is given where the measured value of the second harmonic component is above the...

Страница 64: ...t Battery Test is raised to interface with external equipment This signal is used to disconnect the charging system and the battery is allowed to settle for a fixed period of 30 minutes The battery voltage with no load is then measured V1 and the output Battery Load Test is then raised This is used to connect the resistive load to the battery and the voltage is measured again after 500ms V2 This v...

Страница 65: ...diagram When the test is required the output Cap Test Active is raised This is used externally to start the discharge test When the voltage reduces to the higher voltage detector the relay binary inputs CapMon Input 2 will change to state 0 from the quiescent 1 CapMon Input 1 will remain at the 1 state The relay recognises this 1 0 condition and starts a timer which runs for the Cap Holdup Time If...

Страница 66: ...he Gn Demand Log Update Period setting is used to define the time duration after which the instrument is updated The updated value indicates the maximum minimum and mean values for the defined period Note that this setting can be over ridden by the Gn Demand Log Time Sync setting The Gn Demand Window setting defines the maximum period of time over which the demand values are valid A new set of dem...

Страница 67: ...ndependently of the Total Trip Counter This can be used for example for recording trip operations between visits to a substation CB Count to AR Block Displays the number of CB trips experienced by the CB When the target is reached the relay will only do 1 Delayed Trip to Lockout CB Frequent Ops Count Logs the number of trip operations in a rolling window period of one hour During an autoreclose se...

Страница 68: ...ution package in chronological order allowing the sequence of events to be viewed Events are also made available spontaneously to an IEC 60870 5 103 Modbus RTU or DPN 3 0 compliant control system For a complete listing of events available in each model refer to Technical Manual section 4 Data Comms 6 4 3 Waveform Records Relay waveform storage can be triggered either after user selected relay oper...

Страница 69: ...r with the oldest faults overwritten The fault storage can be cleared with the DATA STORAGE Clear Faults setting or using Reydisp Evolution via Relay Data Records Reset Data Log Record 6 4 5 Data Log The Data log feature can be used to build trend and maximum minimum demand records Up to 10 080 individual time stamped records of each phase current and voltage where fitted analogue signal are recor...

Страница 70: ...r Ports Enabled Disabled Enabled Fascia Enabled Enabled Enabled USB Disabled Enabled Enabled Historical Information Waveform Records Enabled Enabled Enabled Event Records Enabled Enabled Enabled Fault Information Enabled Enabled Enabled Setting Information Enabled Enabled Enabled Table 6 1 Operation Mode 6 7 Control Mode This mode provides convenient access to commonly used relay control and test ...

Страница 71: ...s input is leading edge triggered 6 8 3 Time Synchronisation IRIG B Optional A BNC connector on the relay rear provides an isolated IRIG B time synchronisation port The IRIG B input expects a modulated 3 6 Volt signal and provides time synchronisation to the nearest millisecond 6 9 Settings Groups The relay provides eight groups of settings Group number Gn 1 to 8 At any one time only one group of ...

Страница 72: ...access and by entering the password NONE Again this must be entered twice to de activate the security system As soon as the user attempts to change a setting or initiate control the password is requested before any changes are allowed Once the password has been validated the user is logged on and any further changes can be made without re entering the password If no more changes are made within 1 ...

Страница 73: ...ult of negligence or any other cause Any and all such liability is disclaimed 2010 Siemens Protection Devices Limited 7SR224 Recloser Controller Overcurrent Relay Document Release History This document is issue 2010 09 The list of revisions up to and including this issue is 2008 03 First issue 2008 06 Second issue 2009 02 Third issue Single Triple Autoreclose added 2009 09 Fourth Issue Software ve...

Страница 74: ...igure 1 1 3 Fascia of a 7SR224 relay Please note your model may differ from illustration 4 Figure 1 2 4 Relay Identifier Screen 5 Figure 1 2 5 Typical Menu Structure See Appendices for relevant software version 6 Figure 2 1 1 1 USB connection to PC 9 Figure 2 1 2 1 RS485 connection to PC 10 Figure 2 1 3 1 Fibre Optic Connection to PC 10 Figure 2 1 4 1 Direct RS232 Connection to PC 11 Figure 2 1 5 ...

Страница 75: ... g current voltage etc Fault Data Mode allows the user to view the type and data of any fault detected by the relay Control Mode allows the user to control external plant under the relays control for example the CB if allowed via the control mode password The menus can be viewed via the LCD by pressing the access keys as below Figure 1 1 1 Menu Pressing CANCEL returns to the Identifier screen LCD ...

Страница 76: ...7SR224 Argus Settings Configuration Instruments Figure 1 1 3 Fascia of a 7SR224 relay Please note your model may differ from illustration 2010 Siemens Protection Devices Limited Chapter 2 Page 4 of 13 ...

Страница 77: ... relays and LED s The five push buttons have the following functions READ DOWN READ UP Used to navigate the menu structure ENTER The ENTER push button is used to initiate and accept setting changes When a setting is displayed pressing the ENTER key will enter the edit mode the setting will flash and can now be changed using the READ UP or READ DOWN buttons When the required value is displayed the ...

Страница 78: ...7SR224 Argus Settings Configuration Instruments Figure 1 2 5 Typical Menu Structure See Appendices for relevant software version 2010 Siemens Protection Devices Limited Chapter 2 Page 6 of 13 ...

Страница 79: ...the ENTER button can be pressed to edit the setting value If the relay is setting password protected the user will be asked to enter the password If an incorrect password is entered editing will not be permitted All screens can be viewed even if the password is not known While a setting is being edited flashing characters indicate the edit field Pressing the READ UP or READ DOWN buttons will displ...

Страница 80: ... 6 Control Mode This mode provides convenient access to commonly used relay control and test functions When any of the items listed below are selected control is initiated by pressing the ENTER key The TEST RESET button is used to toggle between the available options The user is prompted to confirm the action again by pressing the ENTER key before the command is executed If the action is not confi...

Страница 81: ...menu Software This software requires windows 2000 service pack 4 or above or windows XP with service pack 2 or above 2 1 Physical Connection The relay can be connected to Reydisp via any of the communication ports on the relay Suitable communication Interface cable and converters are required depending which port is being used 2 1 1 Front USB connection To connect your pc locally via the front USB...

Страница 82: ...tion Figure 2 1 3 1 Fibre Optic Connection to PC Sigma devices have a 25 pin female D connector with the following pin out Pin Function 2 Transmit Data 3 Received Data 4 Request to Send 5 Clear to Send 6 Data set ready 7 Signal Ground 8 Received Line Signal Detector 20 Data Terminal Ready 2010 Siemens Protection Devices Limited Chapter 2 Page 10 of 13 ...

Страница 83: ...d 6 Data set ready 7 Request to Send 8 Clear to Send 2 1 5 Configuring Relay Data Communication Using the keys on the relay fascia scroll down the settings menu s into the communications menu and change the settings for the communication port used on the relay All of the below settings may not be available in all relay types Reydisp software uses IEC60870 5 103 protocol to communicate COM1 RS485 P...

Страница 84: ...he front USB port COM2 USB Baud Rate 75 110 150 300 600 1200 2400 4800 9600 19200 38400 57600 115200 230400 460800 921600 57600 COM2 USB Parity NONE ODD EVEN EVEN COM3 Protocol OFF IEC60870 5 103 MODBUS RTU DNP3 0 or IEC60870 5 101 IEC6 0870 5 103 COM3 This is an optional rear mounted optional connection COM3 Baud Rate 75 110 150 300 600 1200 2400 4800 9600 19200 38400 57600 115200 57600 COM3 Pari...

Страница 85: ...ll display all available communication ports With the preferred port highlighted select the Properties option and ensure the baud rate and parity match that selected in the relay Data Comms settings Select Connect to initiate the relay PC connection Figure 2 1 5 1 PC Comm Port Selection Via the Relay Set Address Address set the relay address 1 254 or alternatively search for connected devices usin...

Страница 86: ...error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2010 Siemens Protection Devices Limited 7SR224 Recloser Controller Overcurrent Relay Document Release History This document is issue 2010 09 The list of revisions up to and including this issue is 2008 03 First issue 2008 06 R1a Typographical revisions Page 9 2009 09 LOV modified 50 51G modifi...

Страница 87: ... Level 16 2 1 4 Operate and Reset Time 16 2 2 37 Undercurrent 17 2 2 2 Reference 17 2 2 3 Operate and Reset Level 17 2 2 4 Operate and Reset Time 17 2 3 46NPS Negative Phase Sequence Overcurrent 18 2 3 1 Reference 46DT 18 2 3 2 Operate and Reset Level 46DT 18 2 3 3 Operate and Reset Time 46DT 18 2 3 4 Reference 46IT 19 2 3 5 Operate and Reset Level 46IT 19 2 3 6 Operate and Reset Time 46IT 19 2 4 ...

Страница 88: ...ercurrent Earth Fault 39 2 15 1 Reference 39 2 15 2 Operate Angle 39 2 15 3 Operate Threshold 39 2 15 4 Minimum Polarising Voltage Level 39 2 15 5 Operate and Reset Time 39 2 16 81Under Over Frequency 40 2 16 1 Reference 40 2 16 2 Operate and Reset Level 40 2 16 3 Operate and Reset Time 40 Section 3 Supervision Functions 41 3 1 46BC Broken Conductor 41 3 1 1 Reference 41 3 1 2 Operate and Reset Le...

Страница 89: ...t Slip Frequency Detector 48 4 2 Loss of Voltage LOV Loop Automation Function 49 4 2 1 Reference LOV A X Dead Live 49 4 2 2 Operate and Reset Level 49 4 2 3 Reference LOV Automation Timers 49 4 2 4 Operate Time LOV Automation Timers 49 List of Figures Figure 1 1 Binary Input Configurations Providing Compliance with EATS 48 4 Classes ESI 1 and ESI 2 10 Figure 2 1 Thermal Overload Protection Curves ...

Страница 90: ...onditions unless specifically stated otherwise Parameter Value Auxiliary supply nominal Frequency nominal Ambient temperature 20 C 1 1 3 Dimensions Parameter Value E10 case 260 mm Width E12 case 312 mm Height 177 mm Depth behind panel including clearance for wiring and fibre 287 mm Projection from front of panel 31 mm See appropriate case outline and panel drilling drawing as specified in Diagrams...

Страница 91: ...ue 7SR2241 E10 case 5 98kg 7SR2242 E10 case 5 98kg 7SR2243 E10 case 5 98kg 7SR2244 E10 case 5 98kg 7SR2245 E10 case 5 98kg 7SR2246 E12 case 7 43kg 7SR2247 E12 case 7 80kg Net weight 7SR2248 E12 case 7 80kg 2010 Siemens Protection Devices Limited Chapter 3 Page 6 of 49 ...

Страница 92: ...V DC Quiescent back light 8 5W 1 2 2 AC Current Nominal Measuring Range In 1 5 A Phase and earth 80 x In fn 50 60Hz 47 to 62Hz Note 1 A and 5 A nominal inputs are user selectable on each model 1 2 2 1 Burden Value Phase and Earth Attribute 1A 5A AC Burden 0 1 VA 0 3 VA 1 2 2 2 Thermal Withstand Overload Current Phase and Earth Overload Period 1A 5A Continuous 3 0 xIn 10 minutes 3 5 xIn 5 minutes 4...

Страница 93: ... Carry continuously 5A AC or DC for 0 5 s 20A AC or DC Make and carry L R 40 ms and V 300 V for 0 2 s 30A AC or DC AC resistive 1250 VA AC inductive 250 VA at p f 0 4 DC resistive 75 W Break 5 A and 300 V DC inductive 30 W at L R 40ms 50 W at L R 10ms Contact Operate Release Time 7ms 3ms Minimum number of operations 1000 at maximum load Minimum recommended load 0 5 W at minimum of 10mA or 5V 2010 ...

Страница 94: ...I pick up delay of typically one cycle can be applied The default pick up time delay of 20ms will provide this immunity The standard EATS 48 4 specifies additional performance requirements to provide greater security against external disturbances This standard can be applied to applications where a binary input is used to influence a control function e g provide a tripping function and the wiring ...

Страница 95: ...citance discharge BI DTL 10ms 10µF 150V Capacitance discharge BI 19V BI 19V BI 19V BI 19V BI 19V Resistor power ratings 30V DC Nominal 3W 48V DC Nominal 3W 110V DC Nominal 10W ESI 1 110V DC Nominal 20W ESI 2 Resistors must be wired with crimped connections as they may run hot 110V DC Nominal 87 5 137 5V Operative IOP 25mA 2K7 110V DC Nominal 87 5 137 5V Operative IOP 50mA 1K3 BI DTL 10ms 10µF 150V...

Страница 96: ...dBm Receiver sensitivity 24 dBm 1 3 4 RS485 Data Communication Interface Attribute Value Physical layer Electrical Connectors 4mm Ring Crimp 1 3 5 Additional RS485 Data Communication Interface Attribute Value Physical layer Electrical Connectors Screw retainer terminal to suit Flat Blade Crimps up to 2 5mm 1 3 6 RS232 Data Communication Interface Attribute Value Physical layer Electrical Connector...

Страница 97: ...fication 1 3 7 2 IRIG B Attribute Value Connector BNC Signal Type IRIG B 120 122 or 123 Applied signal level minimum 3 V maximum 6 V peak to peak Signal carrier ratio 3 2010 Siemens Protection Devices Limited Chapter 3 Page 12 of 49 ...

Страница 98: ... 4 1 4 Insulation IEC 60255 5 Type Level Between any M4 terminal and earth Between independent circuits 2 5 kV AC RMS for 1 min Across normally open contacts 1 0 kV AC RMS for 1 min 1 4 1 5 IP Ratings Type Level Installed with cover on IP 50 from front Installed with cover removed IP 30 from front 1 4 2 Emissions IEC 60255 25 1 4 2 1 Radiated Radio Frequency Type Limits at 10 m Quasi peak 30 to 23...

Страница 99: ...ctrostatic Discharge IEC 60255 22 2 Class IV Type Level Variation Contact discharge 8 0 kV 5 1 4 3 4 Radiated Immunity IEC 60255 22 3 Class III Type Level Variation 80 MHz to 1000 MHz 10 V m 5 1 4 3 5 Fast Transients IEC 60255 22 4 Class IV Type Level Variation 5 50 ns 2 5 kHz repetitive 4kV 5 1 4 3 6 Surge Immunity IEC 60255 22 5 Type Level Variation Between all terminals and earth 4 0 kV Between...

Страница 100: ...e 1 0 gn 5 1 4 4 2 Shock and Bump IEC 60255 21 2 Class I Type Level Variation Shock response 5 gn 11 ms Shock withstand 15 gn 11 ms Bump test 10 gn 16 ms 5 1 4 4 3 Seismic IEC 60255 21 3 Class I Type Level Variation Seismic response 1 gn 5 1 4 4 4 Mechanical Classification Type Level Durability 10 6 operations 2010 Siemens Protection Devices Limited Chapter 3 Page 15 of 49 ...

Страница 101: ...e 100 hyst x Vop 1 or 0 25V Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2 1 4 Operate and Reset Time Attribute Value 0 to 1 1 x Vs 73 ms 10ms Overvoltage 0 to 2 0 xVs 63 ms 10ms Element basic operate time Standard LOV models Undervoltage 1 1 to 0 5 xVs 58 ms 10ms 0 to 1 1 x Vs 81 ms 10ms Overvoltage 0 to 2 0 xVs 71 ms 10ms tbasicE Element basic operate time Single Triple mode...

Страница 102: ... Attribute Value Iop Operate level 100 Is 5 or 1 In Reset level 105 Iop Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2 2 4 Operate and Reset Time Attribute Value tbasic Element basic operate time 1 1 to 0 5 xIs 35 ms 10ms top Operate time following delay tbasic td 1 or 10ms Repeatability 1 or 10ms Overshoot time 40 ms Disengaging time 60 ms 2010 Siemens Protection Devices Limi...

Страница 103: ...te Value Iop Operate level 100 Is 5 or 1 In Reset level 95 Iop Repeatability 1 Transient overreach X R 100 5 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2 3 3 Operate and Reset Time 46DT Attribute Value 0 to 2 xIs 40 ms 10ms tbasic Element basic operate time 0 to 5 xIs 30 ms 10ms top Operate time following delay tbasic td 1 or 10ms Repeatability 1 or 10ms Overshoot time 40 ms Disengaging tim...

Страница 104: ...1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2 3 6 Operate and Reset Time 46IT Attribute Value Starter operate time 2xIs 35 ms 10ms char IEC NI IEC VI IEC EI IEC LTI Tm K t Is I op 1 α 5 absolute or 50 ms for char IEC NI K 0 14 α 0 02 IEC VI K 13 5 α 1 0 IEC EI K 80 0 α 2 0 IEC LTI K 120 0 α 1 0 char ANSI MI ANSI VI ANSI EI Tm B A t P Is I op 1 5 absolute or 50 ms for char ANSI MI A 0 0515 ...

Страница 105: ...el 47 Attribute Value Vop Operate level 100 hyst x Vop 1 or 0 25 V Reset level 95 Vop Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2 4 3 Operate and Reset Time 47 Attribute Value 0V to 2 xVs 80 ms 20ms tbasic Element basic operate time 0V to 10 xVs 55 ms 20ms top Operate time following delay tbasic td 2 or 20ms Repeatability 1 or 20ms Overshoot time 40 ms Disengaging time 60 m...

Страница 106: ...ing 1 1 5 1000 min 2 5 2 Operate and Reset Level Attribute Value Iol Overload level 100 Is 5 or 1 In Reset level 95 Iol Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2 5 3 Operate and Reset Time Attribute Value top Overload trip operate time τ 2 2 2 P 2 I I I ln B I k t where IP prior current 5 absolute or 100ms Repeatability 100ms Figure 2 1 shows the thermal curves for variou...

Страница 107: ...2010 Siemens Protection Devices Limited Chapter 3 Page 22 of 49 0 1 1 10 100 1000 10000 100000 0 1 2 3 4 5 6 7 8 9 Current multiple of setting Time sec 10 τ 1000 mins τ 100 mins τ 10 mins τ 1 min Figure 2 1 Thermal Overload Protection Curves ...

Страница 108: ...Reset Level Attribute Value Iop Operate level 100 Is 5 or 1 In Reset level 95 Iop Repeatability 1 Transient overreach X R 100 5 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2 6 3 Operate and Reset Time Attribute Value 0 to 2 xIs 35 ms 10ms tbasic Element basic operate time 0 to 5 xIs 25 ms 10ms top Operate time following delay tbasic td 1 or 10ms Repeatability 1 or 10ms Overshoot time 40 ms D...

Страница 109: ...ate and Reset Level Attribute Value Iop Operate level 100 Is 5 or 1 In Reset level 95 Iop Repeatability 1 Transient overreach X R 100 5 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2 7 3 Operate and Reset Time Attribute Value 0 to 2 xIs 35 ms 10ms tbasic Element basic operate time 0 to 5 xIs 25 ms 10ms top Operate time following delay tbasic td 1 or 10ms Repeatability 1 or 10ms Overshoot time...

Страница 110: ...p Operate level 100 Is 5 or 1 In Reset level 95 Iop 5 or 1 In Repeatability 1 Transient overreach X R 100 5 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz harmonics to fcutoff 5 2 8 3 Operate and Reset Time Attribute Value 0 to 2 xIs 35 ms 10ms tbasic Element basic operate time 0 to 5 xIs 25 ms 10ms top Operate time following delay tbasic td 1 or 10ms Repeatability 1 or 10ms Overshoot time 40 ms ...

Страница 111: ...mance Specification Appendix 1 Tm Time Multiplier setting 0 025 0 05 1 6 2 to 20 xIs I Applied current IDMTL for operate time DTL 5 xIs td Delay setting 0 0 01 20 s tres Reset setting ANSI DECAYING 0 1 60 s 2 9 2 Operate and Reset Level Attribute Value Iop Operate level 105 Is 4 or 1 In Reset level 95 Iop Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2010 Siemens Protection Dev...

Страница 112: ... 0 ANSI EI A 28 2 B 0 1217 P 2 0 top Operate time char DTL td 1 or 20ms ANSI DECAYING Tm R t Is I res 1 2 5 absolute or 30 ms for char ANSI MI R 4 85 ANSI VI R 21 6 ANSI EI R 29 1 Reset time tres tres 1 or 20ms Repeatability 1 or 20ms Overshoot time 40 ms Disengaging time 50 ms Figure 2 2 shows the operate times for the four IEC IDMTL curves with a time multiplier of 1 Figure 2 3 shows the ANSI ID...

Страница 113: ...See Performance Specification Appendix 1 Tm Time Multiplier setting 0 025 0 05 1 6 td Delay setting DTL 0 0 01 20 s tres Reset setting ANSI DECAYING 0 1 60 s IDMTL 2 to 20 xIs I Applied current for operate time DTL 5 xIs 2 10 2 Operate and Reset Level Attribute Value Iop Operate level 105 Is 4 or 1 In Reset level 95 Iop Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2010 Siemens...

Страница 114: ... 0 ANSI EI A 28 2 B 0 1217 P 2 0 top Operate time char DTL td 1 or 20ms ANSI DECAYING Tm R t Is I res 1 2 5 absolute or 30 ms for char ANSI MI R 4 85 ANSI VI R 21 6 ANSI EI R 29 1 Reset time tres tres 1 or 20ms Repeatability 1 or 20ms Overshoot time 40 ms Disengaging time 50 ms Figure 2 2 shows the operate times for the four IEC IDMTL curves with a time multiplier of 1 Figure 2 3 shows the ANSI ID...

Страница 115: ...000 1 10 100 Current multiples of setting Time sec 2 3 4 5 6 8 20 30 40 50 60 80 Long Time Inverse Normal Inverse Very Inverse Extremely Inverse Figure 2 2 IEC IDMTL Curves Time Multiplier 1 2010 Siemens Protection Devices Limited Chapter 3 Page 30 of 49 ...

Страница 116: ...0 1000 1 10 100 Current multiples of setting Time sec 2 3 4 5 6 8 20 30 40 50 60 80 Moderately Inverse Extremely Inverse Very Inverse Figure 2 3 ANSI IDMTL Operate Curves Time Multiplier 1 2010 Siemens Protection Devices Limited Chapter 3 Page 31 of 49 ...

Страница 117: ...1000 0 1 1 Current multiples of setting Time sec Moderately Inverse Extremely Inverse Very Inverse 0 2 0 3 0 4 0 5 0 6 0 8 0 9 0 7 5 50 500 Figure 2 4 ANSI Reset Curves Time Multiplier 1 2010 Siemens Protection Devices Limited Chapter 3 Page 32 of 49 ...

Страница 118: ...See Performance Specification Appendix 1 Tm Time multiplier 1 0 td Delay setting 0 00 20 00 s tres Reset setting DECAYING 0 1 60 s IDMTL 2 to 20 xIs I Applied current for operate time DTL 5 xIs 2 11 2 Operate and Reset Level Attribute Value Iop Operate level 105 Is 4 or 1 In Reset level 95 Iop 4 or 1 In Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz harmonics to fcutoff 5 2010 Sie...

Страница 119: ... Is I op 1 5 absolute or 30 ms for char ANSI MI A 0 0515 B 0 114 P 0 02 ANSI VI A 19 61 B 0 491 P 2 0 ANSI EI A 28 2 B 0 1217 P 2 0 top Operate time char DTL td 1 or tcycle char ANSI and tres DECAYING Tm R t Is I res 1 2 5 absolute or 30 ms for char ANSI MI R 4 85 ANSI VI R 21 6 ANSI EI R 29 1 Reset time tres DECAYING tres 1 or 20ms Repeatability 1 or 20ms Overshoot time 40 ms Disengaging time 50 ...

Страница 120: ...et Level Attribute Value Vop Operate level 100 Vs 1 or 0 25V Reset level 105 Vop Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz harmonics to fcutoff 5 Operate and Reset Time As per Phase Fault Shaped Characteristic Element ANSI 51 Where Pickup Level Is for Voltage Vs Pickup Level Is x m for Voltage Vs 2010 Siemens Protection Devices Limited Chapter 3 Page 35 of 49 ...

Страница 121: ...9NDT Attribute Value 0V to 1 5 xVs 76 ms 20ms tbasic Element basic operate time 0V to 10 xVs 63 ms 20ms top Operate time following delay tbasic td 1 or 20ms Repeatability 1 or 20ms Overshoot time 40 ms Disengaging time 50 ms 2 13 4 Reference 59NIT Parameter Value M Multiplier setting 0 1 0 2 10 10 5 140 Vs Setting 1 1 5 100V td Delay setting 0 0 01 20 s tres Reset setting 0 1 60 s 2 13 5 Operate a...

Страница 122: ... 2 13 6 Operate and Reset Time 59NIT Attribute Value tbasic Starter operate time 2xVs 65 ms 20ms char IDMTL 1 M t Vs 0 V 3 op 5 or 65 ms top Operate time char DTL td 1 or 40ms char IDMTL tres 5 or 65ms Reset Time char DTL tres 1 or 40ms Repeatability 1 or 20ms Overshoot time 40 ms Disengaging time 50 ms ...

Страница 123: ...Value Iop Operate level 100 Is 5 or 1 xIn Reset level 95 Iop 5 or 0 1 xIn Repeatability 1 Transient overreach X R 100 5 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 2 14 3 Operate and Reset Time Attribute Value 0 to 2 xIs 40 ms 10ms tbasic Element basic operate time 0 to 5 xIs 30 ms 10ms top Operate time following delay tbasic td 1 or 10ms Repeatability 1 or 10ms Overshoot time 40 ms Disengag...

Страница 124: ...CA 87 5 2 5 to CA 87 5 2 5 Operating angle for SEF elements with Compensated Networks Enabled reverse CA 180 87 5 2 5 to CA 180 87 5 2 5 10 C to 55 C 5 Variation in characteristic angle fnom 3 Hz to fnom 2 Hz 5 2 15 3 Operate Threshold Attribute Value I p f 5 In I e f 0 5 In V p f 1 V Minimum levels for operation V e f 1 V 2 15 4 Minimum Polarising Voltage Level Parameter Value Vs Setting V0 100 V...

Страница 125: ...100 Fs 10mHz overfrequency 100 hyst xFop 10mHz Reset level underfrequency 100 hyst xFop 10mHz Repeatability 1 Variation 10 C to 55 C 5 2 16 3 Operate and Reset Time Attribute Value Typically 110ms overfrequency Maximum 150ms Typically 110ms tbasic Element basic operate time for ROCOF between 0 1 and 5 0 Hz sec underfrequency Maximum 150ms top Operate time following delay tbasic td 1 or 10ms Repeat...

Страница 126: ...bute Value Icurr Operate level 100 Iset 5 Reset level 90 Icurr 5 Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz harmonics to fcutoff 5 3 1 3 Operate and Reset Time Attribute Value tbasic Basic operate time 1x In to 0 A 40 ms Operate time tf tbasic 1 or 20ms Repeatability 1 or 20ms Variation fnom 3 Hz to fnom 2 Hz harmonics to fcutoff 5 2010 Siemens Protection Devices Limited Chapt...

Страница 127: ...te and Reset Level Attribute Value Iop Operate level 100 Is 5 or 1 In Ireset Reset level 100 Iop 5 or 1 In Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 3 2 3 Operate and Reset Time Attribute Value tbasic Element basic operate time 20ms Stage 1 tCBF1 1 or 20ms top Stage 2 tCBF2 1 or 20ms Repeatability 1 or 20ms Overshoot 2 x 20ms Disengaging time 20ms 2010 Siemens Protection De...

Страница 128: ... Voltage Threshold Attribute Value Iop CT failed current level 100 Ithresh 5 or 1 In Reset level 90 Iop 5 or 1 In Vop CT failed voltage level 100 Vthresh 2 or 0 5V Reset level 110 Vop 2 or 0 5V Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz harmonics to fcutoff 5 3 3 3 Operate and Reset Time Attribute Value tbasic Basic operate time 30 ms 20ms Operate time tbasic 1 or 20ms Repeata...

Страница 129: ...et level 90 VNPSop 5 Vn VPPSop Voltage PPS operate level 100 Vpps 5 Vn Voltage PPS reset level 110 VPPSop 5 Vn INPSblk Current NPS operate level 100 Inps 5 xIn Current NPS reset level 90 INPSblk 5 xIn IPPSblk Current PPS operate level 100 IFpps 5 xIn Current PPS reset level 90 IPPSblk 5 xIn IPPSload Current PPS operate level 100 Ipps 5 xIn Current PPS reset level 90 IPPSload 5 xIn Repeatability 1 ...

Страница 130: ...ime Attribute Value tbasic Basic operate time 30 ms 20ms Operate time tbasic td 1 or 10ms Repeatability 1 or 10ms 3 6 74TCS Trip Circuit Supervision 3 6 1 Operate and Reset Time Attribute Value tbasic Element basic operate time 30ms 10ms top Operate time following delay tbasic td 1 or 10ms Repeatability 1 or 10ms 2010 Siemens Protection Devices Limited Chapter 3 Page 45 of 49 ...

Страница 131: ...Operate level 100 I 4 or 1 In Reset level 100 Iop 4 or 1 In Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 3 7 3 Operate and Reset Time Attribute Value tbasic Element basic operate time Will pick up before operation of any protection element due to magnetic inrush Reset Time Will operation until drop off of any protection element due to magnetic inrush 2010 Siemens Protection De...

Страница 132: ... 100s tss SS Timer 0 1s fsps Split Slip 20 mHz 250 mHz tdlc tdbc DLC DBC Delays 0 60s tcw Sync Close Window 1 s 1200s 4 1 2 Live Dead Line Bus Detector Elements Attribute Value Vlive act Live operate level 100 Vlive 1 Vn Live reset level Vdead act 1 Vn Vdead act Dead operate level 100 Vdead 1 Vn Dead reset level Vlive act 1 Vn Repeatability 1 10 C to 55 C 5 Variation fnom 3 Hz to fnom 2 Hz 1 4 1 3...

Страница 133: ...et angle θop 1 º Repeatability 1 º 4 1 7 CS SS COZ Slip Frequency Attribute Value fop Operate frequency fslip 10 mHz Reset frequency fop 10 mHz Repeatability 10 mHz 4 1 8 CS SS Timer Attribute Value top Operate time 1 º 20ms Note minimum synchronising time following restoration of voltage from a dead condition is 320ms 4 1 9 Split Angle Detector Attribute Value θop Operate angle θsplit 1 4 1 10 Sp...

Страница 134: ...5 C 5 Variation fnom 3 Hz to fnom 2 Hz 5 4 2 3 Reference LOV Automation Timers Attribute Value top LOV Primed Time 0 1 600s top LOV Action Delay 0 1 600s top LOV A Action Delay 0 1 600s top LOV X Action Delay 0 1 600s top LOV Sequence Time 0 1 600s top LOV Reclose Delay 0 1 600s top LOV SOTF Time 0 1 600s top LOV Reclaim Time 0 1 600s top LOV Memory Time 0 1 600s 4 2 4 Operate Time LOV Automation ...

Страница 135: ...by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2010 Siemens Protection Devices Limited 7SR224 Recloser Controller Overcurrent Relay Document Release History This document is issue 2010 09 The list of revisions up to and including this issue is 2008 03 First Issue 2008 11 Second Issue 2009 09 Third Issu...

Страница 136: ...tation Table 38 5 3 Point List 43 5 4 IEC60870 5 101 Introduction 55 Section 6 Modems 74 6 1 1 Connecting a Modem to the Relay s 74 6 1 2 Setting the Remote Modem 74 6 1 3 Connecting to the Remote Modem 74 Section 7 Configuration 75 Section 8 Glossary 76 List of Figures Figure 2 1 Communication to Front USB Port 6 Figure 2 2 Communication to Multiple Devices from Control System using RS485 7 Figur...

Страница 137: ...gating computer e g Reydisp Evolution is required to access the interface This section specifies connection details and lists the events commands and measurands available For further information regarding the IEC60870 5 103 interface reference should be made to the separate Informative Communications Interface manual reference 434 TM 5 available from www siemens com energy The Communications Inter...

Страница 138: ...r engineer remote access 3 Com3 Com4 Optional RS232 dual fibre optic or additional RS485 ports located on the rear of the relay can be used for IEC60870 5 103 DNP3 MODBUS RTU or IEC60870 5 101 communications to a substation SCADA or integrated control system or engineer remote access Any or all ports can be mapped to the IEC60870 5 103 DNP3 MODBUS RTU or IEC60870 5 101 protocol at any one time pro...

Страница 139: ...f link address in octets Not Present Only used with balanced transmission 1 octet address range 0 254 2 octets address range 0 65534 I101 Common Address of ASDU 1 Octet 2 Octets 2 Octet As Required Size of common address in octets 1 octet address range 0 254 2 octets address range 0 65534 I101 Cause of Trans COT 1 Octet 2 Octets 1 Octet As Required Size of cause of transmission in octets 1 octet C...

Страница 140: ...ion is shown Connections to these devices are not shown when they are not connected The USB communication interface on the relay is labelled Com 2 and its associated settings are located in the Data communications menu When connecting to Reydisp using this connection the default settings can be used without the need to first change any settings otherwise the Com 2 port must be set to IEC60870 5 10...

Страница 141: ...ded settings are only visible when DNP3 0 is selected Setting name Range Default Setting Notes Station Address 1 254 for IEC60870 5 103 or IEC60870 5 101 0 247 for Modbus RTU 0 65534 for DNP3 0 1 0 0 As Required An address within the range of the relevant protocol must be given to identify the relay Each relay must have a unique address COM1 RS485 Protocol OFF IEC60870 5 103 MODBUS RTU DNP3 0 or I...

Страница 142: ...acturers data for actual values of fibre attenuation Number of intermediate connectors and splices Fibre cables are supplied on reels of finite length which may necessitate additional jointing Typical losses at connectors are 0 5 1 0dB each This allows for normal age related deterioration Typical losses at splices are 0 3dB Consult fibre manufacturers data for actual values Receiver sensitivity Th...

Страница 143: ...Required Sets the protocol used to communicate on the fibre optic connection Com3 COM3 Baud Rate 75 110 150 300 600 1200 2400 4800 9600 19200 38400 57600 57600 As Required The baud rate set on all of the relays connected to the same system must be the same as the one set on the master device COM3 Parity NONE ODD EVEN EVEN As Required The parity set on all of the relays connected to the same fibre ...

Страница 144: ...F LIGHT OFF As Required Sets the idle state of the line in accordance with master device COM4 Data Echo ON OFF OFF As Required Set to ON when relays are connected in a ring configuration COM4 Mode Local Remote Local Or Remote Remote Remote Selects port mode RS232 to Fibre Optic Converter Tx Rx Tx Rx 62 5 125µm fibre optic with ST connectors Tx Rx Tx Rx Computer or Control System USB or 9 pin male ...

Страница 145: ...7SR224 Argus Data Comms Figure 2 4 Communication to Multiple Devices from Control System and Laptop using Fibre optic Star Network 2010 Siemens Protection Devices Limited Chapter 4 Page 11 of 76 ...

Страница 146: ... be given an address to enable communication and can be set by the Communication Interface Relay Address A relay with the default address of 0 will not be able to communicate Cause of Transmission The cause of transmission COT column of the Information Number and Function table lists possible causes of transmission for these frames The following abbreviations are used Abbreviation Description SE s...

Страница 147: ... 60 136 Clear Waveform Records 1 SE 60 137 Clear Fault Records 1 SE 60 138 Clear Event Records 1 SE 1 SE GI 60 140 Reset Demand metering 20 Ack Nak 60 141 27 Sag SARFI 1 SE GI 60 142 59Swell SARFI 1 SE GI 60 143 Reset SagSwell Count 1 SE 60 150 Battery Test Pass 1 SE 60 151 Battery Test Fail 1 SE 60 152 Battery Ohms High 1 SE 60 153 Battery Volts Low 1 SE GI 60 154 Battery Volts High 1 SE GI 60 15...

Страница 148: ...0 194 Quick Logic E13 1 SE GI 60 195 Quick Logic E14 1 SE GI 60 196 Quick Logic E15 1 SE GI 60 197 Quick Logic E16 1 SE GI 60 214 Function Key 1 1 SE 60 215 Function Key 2 1 SE 60 216 Function Key 3 1 SE 60 217 Function Key 4 1 SE 60 218 Function Key 5 1 SE 60 219 Function Key 6 1 SE 60 220 Function Key 7 1 SE 60 221 Function Key 8 1 SE 60 222 Function Key 9 1 SE 60 223 Function Key 10 1 SE 60 224...

Страница 149: ...GI 70 39 Binary Input 39 1 SE GI 70 40 Binary Input 40 1 SE GI 70 41 Binary Input 41 1 SE GI 70 42 Binary Input 42 1 SE GI 70 43 Binary Input 43 1 SE GI 70 44 Binary Input 44 1 SE GI 70 45 Binary Input 45 1 SE GI 70 46 Binary Input 46 1 SE GI 70 47 Binary Input 47 1 SE GI 70 48 Binary Input 48 1 SE GI 70 49 Binary Input 49 1 SE GI 70 50 Binary Input 50 1 SE GI 70 51 Binary Input 51 1 SE GI 70 52 B...

Страница 150: ...2 Binary Output 12 20 Ack Nak 1 SE GI 80 13 Binary Output 13 20 Ack Nak 1 SE GI 80 14 Binary Output 14 20 Ack Nak 1 SE GI 80 15 Binary Output 15 20 Ack Nak 1 SE GI 80 16 Binary Output 16 20 Ack Nak 1 SE GI 80 17 Binary Output 17 20 Ack Nak 1 SE GI 80 18 Binary Output 18 20 Ack Nak 1 SE GI 80 19 Binary Output 19 20 Ack Nak 1 SE GI 80 20 Binary Output 20 20 Ack Nak 1 SE GI 80 21 Binary Output 21 20 ...

Страница 151: ...ettings Group 1 Select 20 Ack Nak 1 SE GI 160 24 Settings Group 2 Select 20 Ack Nak 1 SE GI 160 25 Settings Group 3 Select 20 Ack Nak 1 SE GI 160 26 Settings Group 4 Select 20 Ack Nak 160 27 Binary Input 1 1 SE GI 160 28 Binary Input 2 1 SE GI 160 29 Binary Input 3 1 SE GI 160 30 Binary Input 4 1 SE GI 160 36 Trip circuit fail 1 SE GI 160 38 VT Fuse Failure 1 SE GI 160 51 Earth Fault Forward Line ...

Страница 152: ... 4 2 SE GI 183 33 50G 4 2 SE GI 183 34 50BF Stage 2 2 SE GI 183 35 Thermal Alarm 2 SE GI 183 36 Thermal Trip 2 SE GI 183 40 CT Supervision 2 SE GI 183 41 51SEF 1 2 SE GI 183 42 50SEF 1 2 SE GI 183 43 51SEF 2 2 SE GI 183 44 50SEF 2 2 SE GI 183 45 51SEF 3 2 SE GI 183 46 50SEF 3 2 SE GI 183 47 51SEF 4 2 SE GI 183 48 50SEF 4 2 SE GI 2 SE GI 183 49 SEF Out In 20 Ack Nak 183 50 46IT 2 SE GI 183 51 46DT ...

Страница 153: ...20 Successful Man Close 1 SE 1 SE GI 183 121 Hotline Working 20 Ack Nak 1 SE GI 183 122 Inst Protection Out 20 Ack Nak 183 123 CB Total Trip Count 1 SE GI 183 124 CB Delta Trip Count 1 SE GI 183 125 CB Count to AR Block 1 SE GI 1 SE 183 126 Reset CB Trip Count Maint 20 Ack Nak 1 SE 183 127 Reset CB Trip Count Delta 20 Ack Nak 1 SE 183 128 Reset CB Trip Count Lockout 20 Ack Nak 183 129 I 2t CB Wear...

Страница 154: ...SE 183 167 Close Circuit Fail 1 SE 183 168 Distance To Fault 1 SE GI 183 169 Distance To Fault 1 SE GI 183 170 Fault Reactance 1 SE GI 183 172 Act Energy Exp 1 SE 183 173 Act Energy Imp 1 SE 183 174 React Energy Exp 1 SE 183 175 React Energy Imp 1 SE 1 SE 183 176 Reset Energy Meters 20 Ack Nak 183 177 Active Exp Meter Reset 1 SE 183 178 Active Imp Meter Reset 1 SE 183 179 Reactive Exp Meter Reset ...

Страница 155: ...ync 20 Ack Nak 183 219 Dead Line Close 1 SE GI 183 220 Dead Bus Close 1 SE GI 183 239 In Fault Current 4 SE 183 240 Ia Fault Current 4 SE 183 241 Ib Fault Current 4 SE 183 242 Ic Fault Current 4 SE 183 243 Ig Fault Current 4 SE 183 244 Isef Fault Current 4 SE 183 245 Va Fault Current 4 SE 183 246 Vb Fault Current 4 SE 183 247 Vc Fault Current 4 SE 184 1 Close CB A Failed 1 SE 184 2 Open CB A Faile...

Страница 156: ...kout 1 SE GI 184 55 CB B Successful Close 1 SE 184 56 CB B Successful DAR Close 1 SE 184 57 CB B Successful Man Close 1 SE 184 58 CB B Total Trip Count 1 SE GI 184 59 CB B Delta Trip Count 1 SE GI 184 60 CB B Count To AR Block 1 SE GI 1 SE 184 61 Reset CB B Total Trip Count 20 Ack Nak 1 SE 184 62 Reset CB B Delta Trip Count 20 Ack Nak 1 SE 184 63 Reset CB B Count to AR Block 20 Ack Nak 184 64 CB B...

Страница 157: ...Nak 184 116 CB C 79 AR In progress 1 SE GI 184 117 CB C Frequent Ops Count 1 SE GI 1 SE 184 118 Reset CB C Frequent Ops Count 20 Ack Nak 184 119 CB C LO Handle Ops Count 1 SE GI 1 SE 184 120 Reset CB C LO Handle Ops Count 20 Ack Nak 184 121 PhC Inst Protection Inhibited 1 SE GI 184 122 CB C Blocked By Interlocking 1 SE GI 184 123 CB C on by auto reclose 1 SE 184 124 CB C Trip Reclose 1 SE 184 125 ...

Страница 158: ...nd of GI 8 End of GI Measurand Function Information Number Description Function Type Cause of Transmission 183 148 Measurand IL1 2 3 V L1 2 3 P Q F VL1 2 L2 3 L3 1 IL1 2 4 x IL2 2 4 x IL3 2 4 x VL1 1 2 x VL2 1 2 x VL3 1 2 x P 2 4 x Q 2 4 x F 1 2 x VL1 2 1 2 x VL2 3 1 2 x VL3 1 1 2 x 9 Cyclic Refresh rate 5 seconds or value change greater than 1 183 216 Measurand Vx Bus Freq Phase Diff Diff Volts a...

Страница 159: ...tion 183 0 Global 183 1 V1 183 2 V2 183 3 V3 183 4 Vx 183 5 Ia 183 6 Ib 183 7 Ic 183 8 Ig1 183 9 Not Used 183 10 Vy 183 11 Vz V1 V2 and V3 are dependent on Phase Voltage Config setting and represent Van Vbn Vcn or Vab Vbc V0 or Va Vb Vc 2010 Siemens Protection Devices Limited Chapter 4 Page 25 of 76 ...

Страница 160: ... Output 4 00005 Binary Output 5 00006 Binary Output 6 00007 Binary Output 7 00008 Binary Output 8 00009 Binary Output 9 00010 Binary Output 10 00011 Binary Output 11 00012 Binary Output 12 00013 Binary Output 13 00014 Binary Output 14 00015 Binary Output 15 00016 Binary Output 16 00017 Binary Output 17 00018 Binary Output 18 00019 Binary Output 19 00020 Binary Output 20 00021 Binary Output 21 0002...

Страница 161: ... A 00128 CB B 00129 CB C 00130 CB A Trip Lockout 00131 CB B Trip Lockout 00132 CB C Trip Lockout 00133 Mode A 3PTrip3PLO 00134 Mode B 1PTrip3PLO 00135 Mode C 1PTrip1PLO 00136 Reset CB A Total Trip Count 00137 Reset CB B Total Trip Count 00138 Reset CB C Total Trip Count 00139 Reset CB A Delta Trip Count 00140 Reset CB B Delta Trip Count 00141 Reset CB C Delta Trip Count 00142 Reset CB A Count To A...

Страница 162: ...027 Binary Input 27 10028 Binary Input 28 10029 Binary Input 29 10030 Binary Input 30 10031 Binary Input 31 10032 Binary Input 32 10033 Binary Input 33 10034 Binary Input 34 10035 Binary Input 35 10036 Binary Input 36 10037 Binary Input 37 10038 Binary Input 38 10039 Binary Input 39 10040 Binary Input 40 10041 Binary Input 41 10042 Binary Input 42 10043 Binary Input 43 10044 Binary Input 44 10045 ...

Страница 163: ...54 46BC 10155 27 59 1 10156 27 59 2 10157 27 59 3 10158 27 59 4 10159 59NIT 10160 59NDT 10161 81 1 10162 81 2 10163 81 3 10164 81 4 10167 64H 10168 37 1 10169 37 2 10170 Vx27 59 10171 AR Active 10172 CB on by AR 10173 Reclaim 10174 Lockout 10175 Hot Line Working 10176 Inst Protection Out 10177 CB Trip Count Maint 10178 CB Trip Count Delta 10179 CB Trip Count Lockout 10180 I 2t CB Wear 10181 79 AR ...

Страница 164: ...10217 CB Frequent Ops Count 10218 I 2t CB Wear 10219 CB Open 10220 CB Closed 10221 CB A Reclaim 10222 CB A Lockout 10223 CB A Total Trip Count 10224 CB A Delta Trip Count 10225 CB A Count To AR Block 10226 CB A I 2t Wear 10227 CB A Frequent Ops Count 10228 CB A LO Handle Ops Count 10229 CB A 79 AR In progress 10230 PhA Inst Protection Inhibited 10231 50BF 1 Pole A 10232 50BF 2 Pole A 10233 Cap A R...

Страница 165: ... 10278 Pole Discrepancy 10279 LOV Primed 10280 LOV Trip 10281 LOV Close 10282 LOV In Progress 10288 SEF Forward Line 10289 SEF Reverse Busbar 10290 General Alarm 1 10291 General Alarm 2 10292 General Alarm 3 10293 General Alarm 4 10294 General Alarm 5 10295 General Alarm 6 10296 General Alarm 7 10297 General Alarm 8 10298 General Alarm 9 10299 General Alarm 10 10300 General Alarm 11 10301 General ...

Страница 166: ...t FP_32BITS_3DP 1 Vb V 30026 Phase c Secondary Volt FP_32BITS_3DP 1 Vc V 30034 Phase ab Nominal Volt FP_32BITS_3DP 1 Vab Degrees 30036 Phase bc Nominal Volt FP_32BITS_3DP 1 Vbc Degrees 30038 Phase ca Nominal Volt FP_32BITS_3DP 1 Vca Degrees 30040 Phase a Nominal Volt FP_32BITS_3DP 1 Va Degrees 30042 Phase b Nominal Volt FP_32BITS_3DP 1 Vb Degrees 30044 Phase c Nominal Volt FP_32BITS_3DP 1 Vc Degre...

Страница 167: ...wer FP_32BITS_3DP 1 3 Phase MVA 30136 Power Factor A FP_32BITS_3DP 1 Phase A 30138 Power Factor B FP_32BITS_3DP 1 Phase B 30140 Power Factor C FP_32BITS_3DP 1 Phase C 30142 3P Power Factor FP_32BITS_3DP 1 3 Phase 30144 Active Energy Export FP_32BITS_3DP 1 3 Phase MWh 30146 Active Energy Import FP_32BITS_3DP 1 3 Phase MWh 30148 Reactive Energy Export FP_32BITS_3DP 1 3 Phase MWh 30150 Reactive Energ...

Страница 168: ...ll STARFI Pole1 30281 Swell SIARFI Pole2 UINT32 Swell SIARFI Pole2 30283 Swell SMARFI Pole2 UINT32 Swell SMARFI Pole2 30285 Swell STARFI Pole2 UINT32 Swell STARFI Pole2 30287 Swell SIARFI Pole3 UINT32 Swell SIARFI Pole3 30289 Swell SMARFI Pole3 UINT32 Swell SMARFI Pole3 30291 Swell STARFI Pole3 UINT32 Swell STARFI Pole3 30293 Bus Freq FP_32BITS_3DP Vx Frequency 30295 Phase Diff FP_32BITS_3DP 25 Ph...

Страница 169: ...ave Notable objects functions and or qualifiers supported in addition to the Highest DNP Levels Supported the complete list is described in the attached table For static non change event object requests request qualifier codes 07 and 08 limited quantity and 17 and 28 index are supported Static object requests sent with qualifiers 07 or 08 will be responded with qualifiers 00 or 01 Output Event Obj...

Страница 170: ...PERATE Never 7 Always Sometimes Configurable DIRECT OPERATE Never 7 Always Sometimes Configurable DIRECT OPERATE NO ACK Never 7 Always Sometimes Configurable Count 1 7 Never Always Sometimes Configurable Pulse On Never Always 7 Sometimes Configurable Pulse Off Never Always 7 Sometimes Configurable Latch On Never Always 7 Sometimes Configurable Latch Off Never Always 7 Sometimes Configurable Queue ...

Страница 171: ...e Section 5 2 Sends Multi Fragment Responses 7 Yes No Configurable Sequential File Transfer Support File Transfer Support Yes 7 No Append File Mode Yes 7 No Custom Status Code Strings Yes 7 No Permissions Field Yes 7 No File Events Assigned to Class Yes 7 No File Events Send Immediately Yes 7 No Multiple Blocks in a Fragment Yes 7 No Max Number of Files Open 0 ...

Страница 172: ...06 no range or all 07 08 limited qty 17 27 28 index 1 1 default see note 1 Binary Input 1 read 00 01 start stop 06 no range or all 07 08 limited qty 17 27 28 index 129 response 00 01 start stop 17 28 index see note 2 1 2 Binary Input with Status 1 read 00 01 start stop 06 no range or all 07 08 limited qty 17 27 28 index 129 response 00 01 start stop 17 28 index see note 2 2 0 Binary Input Change A...

Страница 173: ...8 index 11 2 Binary Output Change with Time 1 read 06 no range or all 07 08 limited qty 129 response 130 unsol resp 17 28 index 12 0 Control Relay Output Block 22 assign class 00 01 start stop 06 no range or all 07 08 limited qty 17 27 28 index 12 1 Control Relay Output Block 3 select 4 operate 5 direct op 6 dir op noack 17 28 index 129 response echo of request 12 2 Pattern Control Block 3 select ...

Страница 174: ... start stop 06 no range or all 07 08 limited qty 17 27 28 index 129 response 00 01 start stop 17 28 index see note 2 30 6 long floating point 1 read 00 01 start stop 06 no range or all 07 08 limited qty 17 27 28 index 129 response 00 01 start stop 17 28 index see note 1 32 0 Analog Change Event Any Variation 1 read 06 no range or all 07 08 limited qty 32 1 default see note 1 32 Bit Analog Change E...

Страница 175: ...e Event with Time 1 read 06 no range or all 07 08 limited qty 129 response 130 unsol resp 17 28 index 50 0 Time and Date 1 read 07 limited qty 1 129 response 07 limited qty 1 50 1 default see note 1 Time and Date 2 write 07 limited qty 1 50 3 Time and Date Last Recorded Time 2 write 07 limited qty 51 1 Time and Date CTO 129 response 130 unsol Resp 07 limited qty 1 51 2 Unsychronised Time and Date ...

Страница 176: ...ly 13 cold restart No Object function code only 14 warm restart No Object function code only 23 delay meas No Object function code only 24 record current Note 1 A Default variation refers to the variation responded when variation 0 is requested and or in class 0 1 2 or 3 scans Default variations are configurable however default settings for the configuration parameters are indicated in the table a...

Страница 177: ...t Change Event Assigned Class 1 2 3 or none 1 Binary Input 1 2 2 Binary Input 2 2 3 Binary Input 3 2 4 Binary Input 4 2 5 Binary Input 5 2 6 Binary Input 6 2 7 Binary Input 7 2 8 Binary Input 8 2 9 Binary Input 9 2 10 Binary Input 10 2 11 Binary Input 11 2 12 Binary Input 12 2 13 Binary Input 13 2 14 Binary Input 14 2 15 Binary Input 15 2 16 Binary Input 16 2 17 Binary Input 17 2 18 Binary Input 1...

Страница 178: ... 41 Trip Circuit Fail 2 42 A Starter 2 43 B Starter 2 44 C Starter 2 45 General Starter 2 46 VTS Alarm 2 47 Earth Fault Forward Line 2 48 Earth Fault Reverse Busbar 2 49 Start Pick up N 2 50 Fault Forward Line 2 51 Fault Reverse Busbar 2 52 51 1 2 53 50 1 2 56 51G 1 2 57 50G 1 2 58 51 2 2 59 50 2 2 62 51G 2 2 63 50G 2 2 64 CTS Alarm 2 65 46IT 2 66 46DT 2 67 47 1 2 68 47 2 2 69 46BC 2 70 27 59 1 2 ...

Страница 179: ...103 Ext Inst Protection Inhibited 2 105 Battery Test Pass 2 106 Battery Test Fail 2 107 Battery Ohms High 2 108 Battery Volts Low 2 109 Battery Volts High 2 110 Battery Healthy 2 112 Capacitor Ready 2 117 51SEF 1 2 118 50SEF 1 2 119 51SEF 2 2 120 50SEF 2 2 121 51SEF 3 2 122 50SEF 3 2 123 51SEF 4 2 124 50SEF 4 2 125 SEF Out 2 126 Trip Circuit Fail 1 2 127 Trip Circuit Fail 2 2 128 Trip Circuit Fail...

Страница 180: ...t Ops Count 2 158 CB B LO Handle Ops Count 2 159 CB B 79 AR In progress 2 160 PhB Inst Protection Inhibited 2 161 50BF 1 Pole B 2 162 50BF 2 Pole B 2 163 Cap B Ready 2 164 Cap B Test Pass 2 165 Cap B Test Fail 2 166 Cap B Recovery Fail 2 167 Cap B Test 2 168 CB C Reclaim 2 169 CB C Lockout 2 170 CB C Total Trip Count 2 171 CB C Delta Trip Count 2 172 CB C Count To AR Block 2 173 CB C I 2t Wear 2 1...

Страница 181: ...cuit Fail 1 2 208 Close Circuit Fail 2 2 209 Close Circuit Fail 3 2 210 Close Circuit Fail 2 211 50BF 1 2 212 50BF 2 2 213 49 Alarm 2 214 49 Trip 2 215 64H 2 216 Vx27 59 2 217 37 1 2 218 37 2 2 219 Cold Load Active 2 220 CB LO Handle Ops Count 2 221 Battery Recovery Fail 2 222 Trip Time Alarm 2 223 SEF Forward Line 2 224 SEF Reverse Busbar 2 225 General Alarm 1 2 226 General Alarm 2 2 227 General ...

Страница 182: ...ogic E10 2 247 Quick Logic E11 2 248 Quick Logic E12 2 249 Quick Logic E13 2 250 Quick Logic E14 2 251 Quick Logic E15 2 252 Quick Logic E16 2 375 LOV A Live 2 376 LOV B Live 2 377 LOV C Live 2 378 LOV X Live 2 379 LOV Y Live 2 380 LOV Z Live 2 381 LOV A 2 382 LOV B 2 383 LOV C 2 384 LOV X 2 385 LOV Y 2 386 LOV Z 2 387 25 System Split 2 388 25 Live Line 2 389 25 Live Bus 2 390 25 Line U V 2 391 25...

Страница 183: ... reporting of time based information associated with controls including any delays before controls are actuated and any durations if the controls are pulsed The default select control buffer size is large enough to hold 10 of the largest select requests possible Binary Output Status Points Static Object Number 10 Change Event Object Number 11 Default Variation reported when variation 0 requested 2...

Страница 184: ...tch Off 43 Hot Line Working on off Pulse On Pulse Off Latch On Latch Off 44 E F off on Pulse On Pulse Off Latch On Latch Off 45 SEF off on Pulse On Pulse Off Latch On Latch Off 46 Inst Protection off on Pulse On Pulse Off Latch On Latch Off 47 LOV off on Pulse On Pulse Off Latch On Latch Off 48 Reset CB Total Trip Count Pulse On Latch On 49 Reset CB Delta Trip Count Pulse On Latch On 50 Reset CB C...

Страница 185: ...ulse On Latch On 76 Reset CB B Count To AR Block Pulse On Latch On 77 Reset CB C Count To AR Block Pulse On Latch On 78 Reset CB A Frequent Ops Count Pulse On Latch On 79 Reset CB B Frequent Ops Count Pulse On Latch On 80 Reset CB C Frequent Ops Count Pulse On Latch On 81 Reset CB A LO Handle Ops Count Pulse On Latch On 82 Reset CB B LO Handle Ops Count Pulse On Latch On 83 Reset CB C LO Handle Op...

Страница 186: ...mary kV 0 001 1000 3 2 4 7 Va Secondary V 100 0 1 3 2 4 8 Vb Secondary V 100 0 1 3 2 4 9 Vc Secondary V 100 0 1 3 2 4 21 Vzps Magnitude V 100 0 1 3 2 4 22 Vpps Magnitude V 100 0 1 3 2 4 23 Vnps Magnitude V 100 0 1 3 2 4 31 Ia Primary kA 0 001 1000 3 2 4 32 Ib Primary kA 0 001 1000 3 2 4 33 Ic Primary kA 0 001 1000 3 2 4 34 Ia Secondary A 100 0 1 3 2 4 35 Ib Secondary A 100 0 1 3 2 4 36 Ic Secondar...

Страница 187: ...00 0 1 3 2 4 82 Thermal Status Ph B 100 0 1 3 2 4 83 Thermal Status Ph C 100 0 1 3 2 4 99 Vab Secondary V 100 0 1 3 2 4 100 Vbc Secondary V 100 0 1 3 2 4 101 Vca Secondary V 100 0 1 3 2 4 102 Vn Primary kV 0 001 1000 3 2 4 103 Vn Secondary V 100 0 1 3 2 4 105 Vx Primary kV 0 001 1000 3 2 4 106 Vx Secondary Magnitude V 100 0 1 3 2 4 108 Ia Max Demand kA 100 0 1 3 2 4 109 Ib Max Demand kA 100 0 1 3 ...

Страница 188: ...3 1 1 3 2 4 149 Interrupt Pole1 1 1 3 2 4 150 Interrupt Pole2 1 1 3 2 4 151 Interrupt Pole3 1 1 3 2 4 152 Swell SIARFI Pole1 1 1 3 2 4 153 Swell SMARFI Pole1 1 1 3 2 4 154 Swell STARFI Pole1 1 1 3 2 4 155 Swell SIARFI Pole2 1 1 3 2 4 156 Swell SMARFI Pole2 1 1 3 2 4 157 Swell STARFI Pole2 1 1 3 2 4 158 Swell SIARFI Pole3 1 1 3 2 4 159 Swell SMARFI Pole3 1 1 3 2 4 160 Swell STARFI Pole3 1 1 3 2 4 1...

Страница 189: ...ed activation activation confirmation deactivation deactivation confirmation activation termination return info caused by a remote cmd return info caused by a local cmd file transfer interrogated by group number request by group n counter request unknown type identification unknown cause of transmission unknown common address of ASDU unknown information object address 1 2 3 4 5 6 7 8 9 10 11 12 13...

Страница 190: ...45 C_SC_NA_1 X X X X X X X X X 46 C_DC_NA_1 X X X X X X X X X 47 C_RC_NA_1 X X X X X X X X X 70 M_EI_NA_1 X 100 C_IC_NA_1 X X X X X X X X X 101 C_CI_NA_1 X X X X X X X 102 C_RD_NA_1 X X X X X 103 C_CS_NA_1 X X X X X X X 104 C_TS_NA_1 X X X X X X 105 C_RP_NA_1 X X X X X X 106 C_CD_NA_1 X X X X X X X Definitions Process Information Object Type in Monitor Direction Abbreviation Description M_SP_NA_1 ...

Страница 191: ...me2A M_ME_TE_1 Measured value scaled value with time tag CP56Time2A M_ME_TF_1 Measured value short floating point number with time tag CP56Time2A M_IT_TB_1 Integrated totals with time tag CP56Time2A M_EP_TD_1 Packed start of events of protection equipment with time tag CP56Time2A M_EP_TE_1 Packed output circuit information of protection equipment with time tag CP56Time2A M_EP_TF_1 Event of protect...

Страница 192: ... 17 Trigger Storage M_SP_TB_1 18 Clear Waveform Records M_SP_TB_1 19 Clear Fault Records M_SP_TB_1 20 Clear Event Records M_SP_TB_1 21 Reset Demand metering M_SP_TB_1 C_SC_NA_1 22 27 Sag SARFI M_SP_TB_1 23 59Swell SARFI M_SP_TB_1 24 Reset SagSwell Count M_SP_TB_1 25 Battery Test Pass M_SP_TB_1 26 Battery Test Fail M_SP_TB_1 27 Battery Ohms High M_SP_TB_1 28 Battery Volts Low M_SP_TB_1 29 Battery V...

Страница 193: ...c E14 M_SP_TB_1 64 Quick Logic E15 M_SP_TB_1 65 Quick Logic E16 M_SP_TB_1 66 Quick Logic E17 M_SP_TB_1 67 Quick Logic E18 M_SP_TB_1 68 Quick Logic E19 M_SP_TB_1 69 Quick Logic E20 M_SP_TB_1 70 Quick Logic E21 M_SP_TB_1 71 Quick Logic E22 M_SP_TB_1 72 Quick Logic E23 M_SP_TB_1 73 Quick Logic E24 M_SP_TB_1 74 Quick Logic E25 M_SP_TB_1 75 Quick Logic E26 M_SP_TB_1 76 Quick Logic E27 M_SP_TB_1 77 Quic...

Страница 194: ..._TB_1 115 Binary Input 7 M_SP_TB_1 116 Binary Input 8 M_SP_TB_1 117 Binary Input 9 M_SP_TB_1 118 Binary Input 10 M_SP_TB_1 119 Binary Input 11 M_SP_TB_1 120 Binary Input 12 M_SP_TB_1 121 Binary Input 13 M_SP_TB_1 122 Binary Input 14 M_SP_TB_1 123 Binary Input 15 M_SP_TB_1 124 Binary Input 16 M_SP_TB_1 125 Binary Input 17 M_SP_TB_1 126 Binary Input 18 M_SP_TB_1 127 Binary Input 19 M_SP_TB_1 128 Bin...

Страница 195: ...B_1 160 Binary Input 52 M_SP_TB_1 161 Binary Input 53 M_SP_TB_1 162 Binary Input 54 M_SP_TB_1 163 Binary Input 55 M_SP_TB_1 164 Binary Input 56 M_SP_TB_1 165 Binary Input 57 M_SP_TB_1 166 Binary Input 58 M_SP_TB_1 167 Binary Input 59 M_SP_TB_1 168 Binary Input 60 M_SP_TB_1 169 Binary Input 61 M_SP_TB_1 170 Binary Input 62 M_SP_TB_1 171 Binary Input 63 M_SP_TB_1 172 Binary Input 64 M_SP_TB_1 173 Bi...

Страница 196: ...1 193 Binary Output 21 M_SP_TB_1 C_SC_NA_1 194 Binary Output 22 M_SP_TB_1 C_SC_NA_1 195 Binary Output 23 M_SP_TB_1 C_SC_NA_1 196 Binary Output 24 M_SP_TB_1 C_SC_NA_1 197 Binary Output 25 M_SP_TB_1 C_SC_NA_1 198 Binary Output 26 M_SP_TB_1 C_SC_NA_1 199 Binary Output 27 M_SP_TB_1 C_SC_NA_1 200 Binary Output 28 M_SP_TB_1 C_SC_NA_1 201 Binary Output 29 M_SP_TB_1 C_SC_NA_1 202 Binary Output 30 M_SP_TB_...

Страница 197: ...ine M_EP_TD_1 223 Earth Fault Reverse Busbar M_EP_TD_1 224 Starter Pick Up L1 M_EP_TD_1 225 Starter Pick Up L2 M_EP_TD_1 226 Starter Pick Up L3 M_EP_TD_1 227 Starter Pick Up N M_EP_TD_1 228 General Trip M_EP_TD_1 229 Trip L1 M_EP_TD_1 230 Trip L2 M_EP_TD_1 231 Trip L3 M_EP_TD_1 232 Fault Impedance M_EP_TD_1 233 Fault Forward Line M_EP_TD_1 234 Fault Reverse Busbar M_EP_TD_1 235 General Starter Pic...

Страница 198: ...70 51V PhA M_EP_TD_1 271 51V PhB M_EP_TD_1 272 51V PhC M_EP_TD_1 273 60 CT Supervision M_EP_TD_1 274 51SEF 1 M_EP_TD_1 275 50SEF 1 M_EP_TD_1 276 51SEF 2 M_EP_TD_1 277 50SEF 2 M_EP_TD_1 278 51SEF 3 M_EP_TD_1 279 50SEF 3 M_EP_TD_1 280 51SEF 4 M_EP_TD_1 281 50SEF 4 M_EP_TD_1 282 SEF Out In M_SP_TB_1 C_SC_NA_1 283 46IT M_EP_TD_1 284 46DT M_EP_TD_1 285 64H M_EP_TD_1 286 EF Out In M_SP_TB_1 C_SC_NA_1 28...

Страница 199: ...ful Man Close M_SP_TB_1 326 Hotline Working M_SP_TB_1 C_SC_NA_1 327 Inst Protection Out M_SP_TB_1 C_SC_NA_1 328 CB Total Trip Count M_SP_TB_1 329 CB Delta Trip Count M_SP_TB_1 330 CB Count to AR Block M_SP_TB_1 331 Reset CB Trip Count Maint M_SP_TB_1 C_SC_NA_1 332 Reset CB Trip Count Delta M_SP_TB_1 C_SC_NA_1 333 Reset CB Trip Count Lockout M_SP_TB_1 C_SC_NA_1 334 I 2t CB Wear M_SP_TB_1 335 Reset ...

Страница 200: ...stance To Fault M_SP_TB_1 367 Distance To Fault M_SP_TB_1 368 Fault Reactance M_SP_TB_1 369 60 CTS I M_SP_TB_1 370 Act Energy Exp M_SP_TB_1 371 Act Energy Imp M_SP_TB_1 372 React Energy Exp M_SP_TB_1 373 React Energy Imp M_SP_TB_1 374 Reset Energy Meters M_SP_TB_1 C_SC_NA_1 375 Active Exp Meter Reset M_SP_TB_1 376 Active Imp Meter Reset M_SP_TB_1 377 Reactive Exp Meter Reset M_SP_TB_1 378 Reactive...

Страница 201: ...en CB A Failed M_SP_TB_1 422 CB A Reclaim M_SP_TB_1 423 CB A Lockout M_SP_TB_1 424 CB A Successful Close M_SP_TB_1 425 CB A Successful DAR Close M_SP_TB_1 426 CB A Successful Man Close M_SP_TB_1 427 CB A Total Trip Count M_SP_TB_1 428 CB A Delta Trip Count M_SP_TB_1 429 CB A Count To AR Block M_SP_TB_1 430 Reset CB A Total Trip Count M_SP_TB_1 C_SC_NA_1 431 Reset CB A Delta Trip Count M_SP_TB_1 C_...

Страница 202: ...NA_1 465 Reset CB B Count to AR Block M_SP_TB_1 C_SC_NA_1 466 CB B I 2t Wear M_SP_TB_1 467 Reset CB B I 2t Wear M_SP_TB_1 C_SC_NA_1 468 CB B 79 AR In progress M_SP_TB_1 469 CB B Frequent Ops Count M_SP_TB_1 470 Reset CB B Frequent Ops Count M_SP_TB_1 C_SC_NA_1 471 CB B LO Handle Ops Count M_SP_TB_1 472 Reset CB B LO Handle Ops Count M_SP_TB_1 C_SC_NA_1 473 PhB Inst Protection Inhibited M_SP_TB_1 4...

Страница 203: ... Protection Inhibited M_SP_TB_1 507 CB C Blocked By Interlocking M_SP_TB_1 508 CB C on by auto reclose M_SP_TB_1 509 CB C Trip Reclose M_SP_TB_1 510 50BF 1 Pole C M_SP_TB_1 511 50BF 2 Pole C M_SP_TB_1 512 CB C Trip Lockout M_SP_TB_1 C_SC_NA_1 513 Cap C Ready M_SP_TB_1 514 Cap C Test Pass M_SP_TB_1 515 Cap C Test Fail M_SP_TB_1 516 Cap C Recovery Fail M_SP_TB_1 517 Cap C Test M_SP_TB_1 518 CB C Dea...

Страница 204: ...Pass M_SP_TB_1 574 Battery Test Fail M_SP_TB_1 575 Battery Ohms High M_SP_TB_1 576 Capacitor Test Pass M_SP_TB_1 577 Capacitor Test Fail M_SP_TB_1 578 Capacitor Recovery Fail M_SP_TB_1 590 Ia Fault M_ME_NC_1 591 Ib Fault M_ME_NC_1 592 Ic Fault M_ME_NC_1 593 Va Fault M_ME_NC_1 594 Vb Fault M_ME_NC_1 595 Vc Fault M_ME_NC_1 596 In Fault M_ME_NC_1 597 Ig Fault M_ME_NC_1 597 Isef Fault M_ME_NC_1 601 Fr...

Страница 205: ...e Power A M_ME_NB_1 656 Reactive Power B M_ME_NB_1 657 Reactive Power C M_ME_NB_1 658 Q 3P M_ME_NB_1 659 Apparent Power A M_ME_NB_1 660 Apparent Power B M_ME_NB_1 661 Apparent Power C M_ME_NB_1 662 S 3P M_ME_NB_1 663 Power Factor A M_ME_NB_1 664 Power Factor B M_ME_NB_1 665 Power Factor C M_ME_NB_1 666 Power Factor 3P M_ME_NB_1 667 Act Energy Exp M_ME_NB_1 668 Act Energy Imp M_ME_NB_1 669 React En...

Страница 206: ...dary M_ME_NB_1 713 CB Total Trip Count M_ME_NB_1 714 CB Delta Trip Count M_ME_NB_1 715 CB Count To AR Block M_ME_NB_1 716 CB Frequent Ops Count M_ME_NB_1 717 CB LO Handle Ops M_ME_NB_1 718 Sag SIARFI Pole1 M_ME_NB_1 719 Sag SMARFI Pole1 M_ME_NB_1 720 Sag STARFI Pole1 M_ME_NB_1 721 Sag SIARFI Pole2 M_ME_NB_1 722 Sag SMARFI Pole2 M_ME_NB_1 723 Sag STARFI Pole2 M_ME_NB_1 724 Sag SIARFI Pole3 M_ME_NB_...

Страница 207: ...p M_ME_NB_1 747 Vb Last Trip M_ME_NB_1 748 Vc Last Trip M_ME_NB_1 749 In Last Trip M_ME_NB_1 750 Ig Last Trip M_ME_NB_1 751 Isef Last Trip M_ME_NB_1 801 Binary Inputs 1 8 M_BO_TB_1 802 Binary Inputs 9 16 M_BO_TB_1 803 Binary Inputs 17 24 M_BO_TB_1 804 Binary Inputs 25 32 M_BO_TB_1 805 Binary Outputs 1 8 M_BO_TB_1 806 Binary Outputs 9 16 M_BO_TB_1 807 Binary Outputs 17 24 M_BO_TB_1 808 Binary Outpu...

Страница 208: ...er This will allow it to initiate communications with the relays Next the user should set the data configuration at the local port i e baud rate and parity so that communication will be at the same rate and format as that set on the relay and the error correction is disabled Auto answer usually requires two parameters to be set The auto answer setting should be switched on and the number of rings ...

Страница 209: ...ed before transmission Setting the Control Relay Output Block CROB commands that can be used with a Binary Output Specifying a dead band outside which Analogue Events will be generated Specifying a multiplier that will be applied to an analogue value before transmission IEC60870 5 103 The tool will allow Data Points to be enabled or disabled Changing the point numbers Function Type FUN and Informa...

Страница 210: ...by Hayes Microcomputer products Inc Line Idle Determines when the device is not communicating if the idle state transmits light Modem MOdulator DEModulator device for connecting computer equipment to a telephone line Parity Method of error checking by counting the value of the bits in a sequence and adding a parity bit to make the outcome for example even Parity Bit Bit used for implementing parit...

Страница 211: ...error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2010 Siemens Protection Devices Limited 7SR224 Recloser Controller Overcurrent Relay Document Release History This document is issue 2010 05 The list of revisions up to and including this issue is 2008 03 First Issue 2008 11 Second Issue Additional I O connection...

Страница 212: ...closer Controller Relay 11 Section 5 Data Comms Connections 12 5 1 RS485 Connection 12 5 2 RS232 Connections 13 5 3 IRIG B Connections 13 5 4 Fibre Optic Connections 13 Section 6 Connection Diagrams 15 6 1 Typical A C Connections 7SR224 DOC DEF Recloser Control Relay 15 List of Figures Figure 4 1 1 Wiring Diagram 7SR224 9 Figure 4 1 2 Additional Inputs Outputs Wiring Diagram 7SR224 10 Figure 4 2 1...

Страница 213: ...l viewing angle of 30 and is back lit However the best viewing position is at eye level and this is particularly important given its control features The relay should be mounted on the circuit breaker or protection panel to allow the operator the best access to the relay functions 1 3 Wiring The product should be wired according to the scheme requirements with reference to the appropriate wiring d...

Страница 214: ...d directly Optical power meters should be used to determine the operation or signal level of the device 1 8 Front Cover The front cover provides additional securing of the relay element within the case The relay cover should be in place during normal operating conditions 2010 Siemens Protection Devices Limited Chapter 5 Page 4 of 16 ...

Страница 215: ...d in size E10 and E12 cases The following drawing is available which gives panel cut out and mounting details Overall Dimensions and panel Drilling for Size E10 Epsilon case Typically 5 89Kg Overall Dimensions and Panel Drilling for Size E12 Epsilon Case 2010 Siemens Protection Devices Limited Chapter 5 Page 5 of 16 ...

Страница 216: ...ts of 4 off M4x10mm Screws 4 off M4 Nuts 4 off M4 Lock Washer Typical rear terminal block fixing kit 1kit per terminal block fitted to relay Consists of 28 x M4 8mm Screws 28 x M4 Lock Washer 2 2 3 Fibre Optic Connectors The relay has Fibre Optic ST TM BFOC 2 5 bayonet connectors fitted when specified 2010 Siemens Protection Devices Limited Chapter 5 Page 6 of 16 ...

Страница 217: ... E10 Case E10 STANDARD COMMS i e USB FRONT PORT RS485 SEE NOTE 2 E10 STANDARD COMMS ADDITIONAL FIBRE OPTIC PORTS IRIG B i e USB FRONT PORT RS485 SEE NOTE 2 IRIG B 2 X F O S T CONNECTORS C D B A C D B A 2010 Siemens Protection Devices Limited Chapter 5 Page 7 of 16 ...

Страница 218: ... BE CRIMPED USING APPROVED TOOLING 2 RS485 BLOCK B TERMS 14 16 18 20 CONNECTIONS TO THIS COMMUNICATION FACILITY IS BY SCREENED TWISTED PAIR CABLE ON SITE WHEN WIRING OTHER FACILITIES ENSURE THAT THESE TERMINALS AND OTHER COMMUNICATIONS INTERFACES ARE NOT OBSCURED BY OTHER WIRING RUNS CABLE SHOULD BE RS485 COMPLIANT 2010 Siemens Protection Devices Limited Chapter 5 Page 8 of 16 ...

Страница 219: ...O 13 BO 14 1A 5A 1A 5A IL2 IB 1A 5A IL3 IC 1A 5A I4 IG ISEF 15 16 11 12 3 4 7 8 A Analogue B PSU C I O 1 2 27 28 1 2 1 2 27 28 27 28 Data Comms Optional Rear View Arrangement of terminals and modules B C A RS485 Screen B Term 14 16 18 20 Shows contacts internal to relay case assembly Contacts close when the relay chassis is withdrawn from case NOTES BI Binary Input BO Binary Output 21 19 17 23 25 ...

Страница 220: ...ve 2 4 BI 25 ve ve 6 8 BI 26 ve 10 BI 27 ve 12 BI 28 ve 14 BI 29 ve ve 16 18 BI 30 20 BI 31 ve 22 BI 32 ve 24 BI 33 ve ve 26 28 ve E Optional Additional I O for 23 Inputs 22 Outputs and 33 Inputs 30 Outputs Models Optional Additional I O for 33 Inputs 14 Outputs Models Optional Additional I O for 43 Inputs 22 Outputs Models BI 24 ve ve 2 4 BI 25 ve ve 6 8 BI 26 ve 10 BI 27 ve 12 BI 28 ve 14 BI 29 ...

Страница 221: ...7SR224 Argus Installation 4 2 Interface Diagram 7SR224 Recloser Controller Relay Figure 4 2 1 Interface Diagram 7SR224 2010 Siemens Protection Devices Limited Chapter 5 Page 11 of 16 ...

Страница 222: ...upply module Up to 64 relays can be connected to the RS485 bus The RS485 data comms link will be broken if the relay element is withdrawn from the case The relay is available with an additional RS485 port as an ordering option The terminal arrangement for this port are shown in Section 3 of this document Connections shown below are duplicated on these ports to provide a separate parallel interface...

Страница 223: ...uld be type RG 58 50ohms 5 4 Fibre Optic Connections Rear Com ports 3 and 4 comprise Fibre Optic ST BFOC 2 5 bayonet connectors 4 per product 62 5 125μm glass fibre is recommended for all distances When installing fibre ensure that the fibres bend radii comply with the recommended minimum for the fibre used typically 50mm is acceptable Figure 5 4 1 Data Comms to Multiple Devices Using Sigma 1 and ...

Страница 224: ...Devices Using Sigma 3 and F O Ring Network The fibre optic data comms link will be broken if the relay element is withdrawn from the case Laptop computer or Control System Sigma 3 Tx Rx Tx Rx RS232 straight through cable USB or 9 pin male D connector 25 pin male D connector 62 5 125µm fibre optic with ST connectors Tx Rx Tx Rx ...

Страница 225: ...ig Van Vbn Vcn 4 Allocation of A B C phase references can be adjusted by user settings to suit actual connections of L1 L2 L3 5 Bus side Voltage Config for optional Synchronising function Vbn shown Van Vbn Vcn Vab Vbc or Vca can be used IL1 IA 1 2 5 6 9 10 13 14 A 21 22 23 24 25 26 27 28 1A 5A 1A 5A 1A 5A 1A 5A 15 16 11 12 3 4 7 8 B C V4 VX VL3 VC VL2 VB VL1 VA IL2 IB IL3 IC I4 IG ISEF Figure 6 1 ...

Страница 226: ...oltage Config Van Vbn Vcn 4 Allocation of A B C phase references can be adjusted by user settings to suit actual connections of L1 L2 L3 5 Bus voltage connections for optional Check Synchronising feature are not shown IL1 IA 1 2 5 6 9 10 13 14 A 21 22 23 24 25 26 27 28 1A 5A 1A 5A 1A 5A 1A 5A 15 16 11 12 3 4 7 8 B C V4 VX VL3 VC VL2 VB VL1 VA IL2 IB IL3 IC I4 IG ISEF Core Balance CT Figure 6 1 2 7...

Страница 227: ...liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2010 Siemens Protection Devices Limited 7SR224 Recloser Controller Overcurrent Relay Document Release History This document is issue 2010 05 The list of revisions up to and including this issue is 2...

Страница 228: ...d Load 51C 21 2 4 1 Inverse Time Overcurrent 51C 22 2 5 Directional Earth Fault Polarity Check 67N 24 2 6 Measured Earth fault 67 50G 67 51G 25 2 6 1 Directional Polarity 26 2 6 2 Definite Time Overcurrent 67 50G 26 2 6 3 Inverse Time Overcurrent 67 51G 26 2 7 Sensitive Earth fault 67 50S 67 51S 29 2 7 1 Directional Polarity 30 2 7 2 Definite Time Overcurrent 50SEF 30 2 7 3 Inverse Time Overcurren...

Страница 229: ...ons 64 4 1 Autoreclose 79 64 4 2 Synchronising 64 4 3 Loss of Voltage LOV Loop Automation Function 65 4 4 Quick Logic 66 Section 5 Testing and Maintenance 67 5 1 Periodic Tests 67 5 2 Maintenance 67 5 3 Troubleshooting 68 Defect Report Form 69 Section 6 Relay Software Upgrade Instructions 71 6 1 General 71 6 2 Replacing firmware on a product installed on site 71 6 2 1 Identify Which Software Is Cu...

Страница 230: ...e 2 8 Sensitive Earth Fault 29 Figure 2 9 Restricted Earth Fault 33 Figure 2 10 Negative Phase Sequence Overcurrent 35 Figure 2 11 Undercurrent 38 Figure 2 12 Thermal Overload 40 Figure 2 13 Phase Under Over Voltage 42 Figure 2 14 Vx Under Over Voltage 45 Figure 2 15 NPS Overvoltage 47 Figure 2 16 Neutral Overvoltage 49 Figure 2 17 Under Over Frequency 51 Figure 3 1 CB Fail 53 Figure 3 2 Voltage T...

Страница 231: ...ansformer C T secondary current is involved the failure or blowing of an instrument fuse or the operation of an instrument cut out could cause the secondary winding of the C T to become an open circuit Open circuit secondary windings on energised current transformers are a hazard that can produce high voltages dangerous to personnel and damaging to equipment test procedures must be devised so as t...

Страница 232: ...suitable filename When testing is completed the event and waveform records should be cleared and the settings file checked to ensure that the required in service settings are being applied 1 2 4 Precautions Before electrical testing commences the equipment should be isolated from the current and voltage transformers The current transformers should be short circuited in line with the local site pro...

Страница 233: ...es that the setting is common to all groups CT VT ratio I O mapping and other settings which are directly related to hardware are common to all groups If the relay is allowed to trip during testing then the instruments display will be interrupted and replaced by the Trip Alert screen which displays fault data information If this normal operation interferes with testing then this function can be te...

Страница 234: ...ot be possible to apply test connections between the current transformer and the power transformer windings Primary injection is needed however to verify the polarity of the CTs In these circumstances primary current must be injected through the associated power transformer winding It may be necessary to short circuit another winding in order to allow current to flow During these primary injection...

Страница 235: ...t connection and measurement accuracy by single phase secondary injection at nominal levels Ensure that the correct instrument displays the applied signal within limits of the Performance Specification Applied Current Applied Voltage IA IB IC IG ISEF VA VAB VB VBC VC VCB VX Secondary Primary Apply 3P balanced Current and Voltage at nominal levels and ensure that the measured Zero Phase Sequence an...

Страница 236: ... part of the scheme logic or individually To check a binary pick up time delay temporarily map the binary to an output relay that has a normally open contact This can be achieved in the Output Matrix sub menu by utilising the BI n Operated settings Use an external timer to measure the interval between binary energisation and closure of the output contacts Similarly to measure the drop off delay ma...

Страница 237: ...y reset trip relays Close each output relay in turn from the Reydisp Evolution PC programme Relay Control Close output relay This function will energise the output for its minimum operate time This time is specified in the Output Config Binary Output Config menu for each output relay and may be too short to measure with a continuity tester An alternative method of energising an output permanently ...

Страница 238: ...7 Relay Case Shorting Contacts CT inputs and terminals B25 B26 Relay Withdrawn Alarm are fitted with case mounted shorting contacts which provide a closed contact when the relay is withdrawn from the case The operation of these contacts should be checked CT Shorting contacts checked Relay Withdrawn Alarm Checked ...

Страница 239: ...ration should be given to disabling functions to avoid interference The General Pickup LED can be used to assess operation of functions during testing if other functions are disabled or if the setting allocating General Pickup is temporarily modified Voltage inputs may not be required for testing of non directional Overcurrent elements but it may be advantageous to apply balanced 3 phase nominal r...

Страница 240: ...spect to the 67 Char Angle setting in the Phase Overcurrent menu This display and the equivalent Measured and Calculated Earth Fault direction meters can be used as an aid to commissioning testing The tests below show directional polarising for convention A B C positive phase sequence In the unusual case of A C B positive phase sequence applications the polarising voltages are inverted to suit the...

Страница 241: ... angle at which the phase current leads the phase phase polarising voltage This measurement is greatly simplified if the polarising reference voltage is set to 0deg and the current phase angle is measured with respect to this reference Alternatively the instrument can be checked at the 4 points marked a b c d on Figure 2 1 only Forward Reverse Lag point C Lead point A Lead point B Lag point D Pick...

Страница 242: ...unctions are mutually exclusive 67 50 x4 67 51 x4 67 50 x4 67 50 x4 67 51 x4 67 51 x4 64 H 27 59 27 59 x4 27 59 x4 27 59 x4 47 x2 79 59N x2 Note Example shows Voltage Config Van Vbn Vcn 81 x4 67 50G x4 67 51G x4 67 50S x4 67 51S x4 27S 59S 27S 59S 27S 59S Batt Test Cap Test Figure 2 2 Phase Overcurrent Voltage Inputs VL1 VA VL2 VB VL3 VC for directional elements Current Inputs IL1 IA IL2 IB IL3 IC...

Страница 243: ...ily drive the relevant Pickup output in the Pickup Config sub menu in the Output Config menu as this will allow the Pick up led to operate for the function Gradually increase current until Pickup LED operates Apply 2x setting current and record operating time Apply 5x setting current and record operating time Compare to calculated values for operating times Operate Current Operate Time Ph Dir Char...

Страница 244: ... operated condition to fully reset are as follows for zero applied current and Time multiplier TM 1 0 The reset curve characteristic type and TM is defined by the operating characteristic Curve Fully operated to reset with Zero current applied TM 1 secs ANSI MI 4 85 ANSI VI 21 6 ANSI EI 29 1 Apply current in the following sequence a 2x setting for a time to ensure element operation b Zero current ...

Страница 245: ...ed apply test current in short duration shots with applied voltage being gradually reduced for each subsequent shot Apply nominal 3 phase balanced voltage Reduce the voltage such that the a b voltage is 110 of the Voltage setting Gradually increase the a b phase current or balanced 3P current until Pickup LED operates Confirm result of Phase O C test above Reduce the applied voltage to a level suc...

Страница 246: ...ickup 2 3 1 1 Element Blocking The Voltage Controlled Overcurrent function can be set to Inhibit for VT Supervision operation This functionality should be checked Apply balanced voltage and current Reduce a phase voltage to cause a VTS condition Increase 3P current until the element operates at its full setting i e 51V settings are not used Element VTS action 51 1 51 2 51 3 51 4 Check correct indi...

Страница 247: ...27S 59S Batt Test Cap Test Figure 2 4 Cold Load Voltage Inputs VL1 VA VL2 VB VL3 VC for directional elements Current Inputs IL1 IA IL2 IB IL3 IC Disable 51V 46 49 50CBF 79 Map Pickup LED 51 n Self Reset The CB must be open for more than the Cold Load Pick up Time to allow testing of this function It may be convenient to reduce this setting to suit the test procedure If the CB is open throughout th...

Страница 248: ...reater than the Reduced Current Time Check the Cold Load Pick up Delay by applying or simulating CB Open Measure the time delay before Cold Load Active is raised Apply current above the Reduced Current Level if this functionality is Enabled before applying CB Closed Measure the time for Cold Load Active to reset 2 4 1 Inverse Time Overcurrent 51C It will be advantageous to map the function being t...

Страница 249: ...urrent and TM 1 0 The reset curve characteristic type and TM is defined by the operating characteristic Curve Fully operated to reset with Zero current applied TM 1 secs ANSI MI 4 85 ANSI VI 21 6 ANSI EI 29 1 Apply current in the following sequence a 2x setting for a time to ensure element operation b Zero current for the reset time above xTM c 2x setting for a time to ensure element operation Che...

Страница 250: ...he ph n voltage by 15º Alternatively a single phase voltage source can be used in the above test The polarity of this voltage applied to the faulted phase neutral alone must be reversed to produce the same residual voltage Vres phase direction as that produced by the 3P voltage simulation described above For the Phase Voltage Config of Vab Vbc Vo the single phase voltage applied to the Vo input is...

Страница 251: ...tage Inputs VL1 VA VL2 VB VL3 VC for directional elements Current Inputs IL1 IL3 IA Ic or I4 IG selectable Disable 50CBF 79 Map Pickup LED 51G n 50G n Self Reset Other protection functions may overlap with these functions during testing it may be useful to disable some functions to avoid ambiguity Measured EF Sensitive EF Restricted EF protections can be Enabled Disabled individually or as groups ...

Страница 252: ...should be tested Apply balanced voltage and current Reduce a phase voltage to cause a VTS condition Increase a phase current and check that the element does not operate If VTS action is set to Non Directional this option should be tested Apply balanced voltage and current Reduce a phase voltage to cause a VTS condition Increase a phase current and check that the element operates at its normal sett...

Страница 253: ...o cause a VTS condition Increase a phase current and check that the element does not operate If VTS action is set to Non Directional this option should be tested Apply balanced voltage and current Reduce a phase voltage to cause a VTS condition Increase a phase current and check that the element operates at its normal setting Reverse the voltage phase direction whilst checking that the element doe...

Страница 254: ...M 1 secs ANSI MI 4 85 ANSI VI 21 6 ANSI EI 29 1 Apply current in the following sequence a 2x setting for a time to ensure element operation b Zero current for the reset time above xTM c 2x setting for a time to ensure element operation Check that the second operation c is similar to the first a and in line with the expected operate time for the element at this current level Repeat the test with th...

Страница 255: ... shows Voltage Config Van Vbn Vcn 81 x4 67 50G x4 67 51G x4 67 50S x4 67 51S x4 27S 59S 27S 59S 27S 59S Batt Test Cap Test Figure 2 8 Sensitive Earth Fault Voltage Inputs VL1 VA VL2 VB VL3 VC for directional elements Current Inputs I4 ISEF Disable 64H 50CBF 79 Map Pickup LED 51SEF n 50SEF n Self Reset Other protection functions may overlap with these functions during testing it may be useful to di...

Страница 256: ...s option should be tested Apply balanced voltage and current Reduce a phase voltage to cause a VTS condition Increase a phase current and check that the element does not operate If VTS action is set to Non Directional this option should be tested Apply balanced voltage and current Reduce a phase voltage to cause a VTS condition Increase a phase current and check that the element operates at its no...

Страница 257: ...se voltage to cause a VTS condition Increase a phase current and check that the element does not operate If VTS action is set to Non Directional this option should be tested Apply balanced voltage and current Reduce a phase voltage to cause a VTS condition Increase a phase current and check that the element operates at its normal setting Reverse the voltage phase direction whilst checking that the...

Страница 258: ...M 1 secs ANSI MI 4 85 ANSI VI 21 6 ANSI EI 29 1 Apply current in the following sequence a 2x setting for a time to ensure element operation b Zero current for the reset time above xTM c 2x setting for a time to ensure element operation Check that the second operation c is similar to the first a and in line with the expected operate time for the element at this current level Repeat the test with th...

Страница 259: ...t Figure 2 9 Restricted Earth Fault Voltage Inputs n a Current Inputs I4 IREF Disable 51SEF 50SEF 79 Map Pickup LED 64H Self Reset The setting resistance should be measured and the value compared to that specified in the settings data Both values should be recorded Settings Data Resistor Value Measured The high value of setting resistance R will often interfere with secondary current injection whe...

Страница 260: ...sure that no personnel are at risk of contact with any of the energised secondary wiring during the test Settings Data Voltage Setting Measured To complete testing of the REF requires primary injection through the phase and residual REF CT in series to simulate an out of zone fault and ensure stability of the relay The test can then be repeated with the REF CT secondary connections reversed to pro...

Страница 261: ...hase Sequence Overcurrent Voltage Inputs n a Current Inputs IL1 IA IL2 IB IL3 IC Disable 51 51V 51C 37 49 50CBF 60CTS 46BC Map Pickup LED 46IT 46DT Self Reset Where two NPS elements are being used with different settings it is convenient to test the elements with the highest settings first The elements with lower settings can then be tested without disabling the lower settings The Thermal withstan...

Страница 262: ...mporarily drive the relevant Pickup output in the Pickup Config sub menu in the Output Config menu as this will allow the Pick up led to operate for the function Gradually increase current until Pickup LED operates Apply 2x setting current and record operating time Apply 5x setting current and record operating time Compare to calculated values for operating times Operate Current Operate Time Ph Ch...

Страница 263: ...to ensure element operation b Zero current for the reset time above xTM c 2x setting for a time to ensure element operation Check that the second operation c is similar to the first a and in line with the expected operate time for the element at this current level Repeat the test with the reset time b reduced to 50 of the previous value Ensure that the second operate time c is 50 of the first a op...

Страница 264: ... Test Figure 2 11 Undercurrent Voltage Inputs n a Current Inputs IL1 IA IL2 IB IL3 IC Disable 51N 51G 46 60CTS 46BC Map Pickup LED 37 n Self Reset If two Undercurrent 37 elements are used with different settings it is convenient to test the element with the lowest setting first The higher setting element can then be tested without interference from the other element Apply 3P balanced current at a ...

Страница 265: ...hase Is Amps DTL sec P U Current Amps Operate Time 0 5 x Is NOTES IL1 IA IL2 IB IL3 IC 2 10 1 1 Element Blocking The Undercurrent elements can be blocked by Binary Input Inhibit This functionality should be checked Element BI Inhibits 37 1 37 2 Check correct indication trip output alarm contacts waveform record ...

Страница 266: ...67 50S x4 67 51S x4 27S 59S 27S 59S 27S 59S Batt Test Cap Test Figure 2 12 Thermal Overload Voltage Inputs n a Current Inputs IL1 IA IL2 IB IL3 IC Disable 51 50 37 50CBF Map Pickup LED 49Alarm The current can be applied from a 3P balanced supply or phase by phase from a 1P supply Alternatively the 3 phase current inputs can be connected in series and injected simultaneously from a single 1P source...

Страница 267: ...e thermal State then apply 2x the Overload Setting current Calculated Operate Time s Measured Operate Time s If the Thermal Overload Capacity Alarm is used this can be tested by monitoring the Thermal Capacity in the instruments menu If the Thermal time constant is longer than a few minutes this can be assessed during the timing test above If the Time Constant is less than a few minutes a lower mu...

Страница 268: ...ttings first The elements with higher settings can then be tested without disabling the lower settings Note that if the voltage is reduced below the 27UVG setting the function may be blocked VTS operation may also block the 27 Undervoltage function Current inputs are not normally required to stabilise the relay during voltage element testing If the O P Phases is set to All the voltage on all phase...

Страница 269: ...ould light at setting Volts 5 Decrease the input voltage to nominal Volts and the LED will extinguish Record the reset voltage to check the Hysteresis setting If the DTL setting is long the operate level can be checked by applying 100 of setting to cause operation followed by setting minus the Hysteresis setting to cause reset Connect the relevant output contact s to stop the test set Step the app...

Страница 270: ...o assist during testing 27UVG operation will reset the General Pickup if no other element is operated This LED should not be set as Hand Reset in the Output matrix Starting from nominal voltage apply a step decrease to the applied voltage to a level below the 27 Undervoltage setting but above the 27UVG setting such that an Undervoltage element operation occurs Slowly reduce the applied voltage unt...

Страница 271: ...tabilize other functions Disable Map Pickup LED Vx 27 59 Self Reset If DTL setting is small gradually increase single phase voltage applied to Vx input until element operates if the element is Overvoltage Alternatively if the element is Undervoltage increase single phase voltage applied to Vx input until element operates If DTL is large for Overvoltage elements apply 0 9x setting check for no oper...

Страница 272: ...hapter 6 Page 46 of 73 2 12 3 1 Element Blocking The Vx Under Over Voltage elements can be blocked by Binary Input Inhibit and VT Supervision This functionality should be checked Element BI Inhibits VT Supervision 27 59x Check correct indication trip output alarm contacts waveform record ...

Страница 273: ...59N 60VTS Map Pickup LED 47 n Self Reset Where two NPS elements are being used with different settings it is convenient to test the elements with the highest settings first The elements with lower settings can then be tested without disabling the lower settings NPS Overvoltage can be tested using a normal 3P balanced source Two phase voltage connections should be reversed so that the applied balan...

Страница 274: ...n Devices Limited Chapter 6 Page 48 of 73 2 12 4 1 Element Blocking The NPS Overvoltage element can be blocked by Binary Input Inhibit This functionality should be checked Element BI Inhibits 47 1 47 2 Check correct indication trip output alarm contacts waveform record ...

Страница 275: ...t Cap Test Figure 2 16 Neutral Overvoltage Voltage Inputs VL1 VA VL2 VB VL3 VC Current Inputs n a apply zero current to stabilize other functions Disable 27 59 47 60VTS Map Pickup LED 59N n Self Reset The voltage source for the Neutral Overvoltage 59N function can be set as either Vn calculated from the applied 3 phase voltage inputs or Vx the V4 input Apply test voltage to 1 phase input or V4 inp...

Страница 276: ... and record operating time Apply a higher multiple of setting voltage and record operating time Compare to calculated values for operating times from 1 1 sec Vs Vn op M onds t Where M Time multiplier and Vn Vs multiple of setting Operate Voltage Operate Time Ph Vs V TM P U Volts D O Volts 2 x Vs sec x Vs sec NOTES P U D O TIMING TESTS E 2 12 7 1 Element Blocking The Neutral Overvoltage elements ca...

Страница 277: ...s to frequency can add additional delay which can produce misleading test results Gradually increase decrease applied voltage frequency until 81 n operation occurs Elements set for more extreme frequency fluctuation should be tested first with lesser elements disabled If the 81 n Delay setting is long it will be advantageous to map the function to temporarily drive the relevant Pickup output in th...

Страница 278: ... the 81 U V Guard Setting at a frequency in the operate range Increase the voltage until the relay operates UVG UVG Setting Volts Freq element Used for test Blocked Volts D O Unblocked Volts P U NOTES U O Freq 2 12 8 1 Element Blocking The U O Frequency elements can be blocked by Binary Input Inhibit This functionality should be checked Element BI Inhibits 81 1 81 2 81 3 81 4 81 5 81 6 Check corre...

Страница 279: ... BINARY OUTPUT CONFIG menu or A binary input mapped as 50BF Ext Trip in the INPUT CONFIG INPUT MATRIX menu Apply a trip condition by injection of current to cause operation of a suitable protection element Allow current to continue after the trip at a level of 110 of the 50BF Setting current level on any phase Measure the time for operation of operation of 50BF 1 Delay and 50BF 2 Delay Repeat the ...

Страница 280: ...Maintenance Guide 2010 Siemens Protection Devices Limited Chapter 6 Page 54 of 73 3 1 1 1 Element Blocking The CB Fail function can be blocked by Binary Input Inhibit This functionality should be checked Element BI Inhibits 50BF ...

Страница 281: ...51S x4 27S 59S 27S 59S 27S 59S Batt Test Cap Test Figure 3 2 Voltage Transformer Supervision Voltage Inputs VL1 VA VL2 VB VL3 VC Current Inputs IL1 IA IL2 IB IL3 IC Disable 27 47 59N Map Pickup LED 60VTS Self Reset 3 2 1 1 or 2 Phase VT fail Apply 3P balanced nominal current and voltage Reduce 1 phase voltage until VTS operates record voltage reduction level 60VTS V Setting Setting x 3 Measured Vo...

Страница 282: ...ate level above Gradually increase the 3P balanced current until the VTS operates Check that the thermal rating of the relay current inputs is not exceeded during the following test Increase the 3P balanced current to a level above the 60VTS Ipps Fault setting Reduce the 3P balanced voltage to a level below the operate level above Gradually reduce the 3P balanced current until the VTS operates Set...

Страница 283: ...7 50 x4 67 50 x4 67 51 x4 67 51 x4 64 H 27 59 27 59 x4 27 59 x4 27 59 x4 47 x2 79 59N x2 Note Example shows Voltage Config Van Vbn Vcn 81 x4 67 50G x4 67 51G x4 67 50S x4 67 51S x4 27S 59S 27S 59S 27S 59S Batt Test Cap Test 60 VTF Figure 3 3 Bus Voltage Transformer Fail Voltage Inputs Vx VL1 VA VL2 VB VL3 VC Current Inputs Disable Vx27 59 Map Pickup LED 60VTS Self Reset With the CB in the closed p...

Страница 284: ... 51G x4 67 50S x4 67 51S x4 27S 59S 27S 59S 27S 59S Batt Test Cap Test Figure 3 4 Current Transformer Supervision Voltage Inputs VL1 VA VL2 VB VL3 VC Current Inputs IL1 IA IL2 IB IL3 IC Disable 51N 46IT 46DT 46BC Map Pickup LED 60CTS Self Reset The presence of NPS current without NPS voltage is used to indicate a current transformer failure Apply normal 3P balanced current with a crossover of any ...

Страница 285: ...tenance Guide 2010 Siemens Protection Devices Limited Chapter 6 Page 59 of 73 3 4 1 1 Element Blocking The CT Supervision function can be blocked by Binary Input Inhibit This functionality should be checked Element BI Inhibits 60CTS ...

Страница 286: ...rent to PPS current to detect an open circuit conductor These quantities can be produced directly from many advanced test sets but with limited equipment the following approach can be applied Apply 3P balanced current with normal phase rotation direction This current will consist of PPS alone no NPS or ZPS Increase 1 phase current magnitude in isolation to produce NPS The single phase unbalance cu...

Страница 287: ...ng 1P unbalance current of 3P current 20 75 25 100 30 129 35 161 40 200 46BC Setting 3P balanced current A 1P unbalance current A Measured Unbalance current Apply 1A 1P unbalance current without 3P balanced current Measure 46BC operating time 46BC Delay setting Measured 3 5 1 1 Element Blocking The Broken Conductor element can be blocked by Binary Input Inhibit This functionality should be checked...

Страница 288: ... functions are mutually exclusive 67 50 x4 67 51 x4 67 50 x4 67 50 x4 67 51 x4 67 51 x4 64 H 27 59 27 59 x4 27 59 x4 27 59 x4 47 x2 79 59N x2 Note Example shows Voltage Config Van Vbn Vcn 81 x4 67 50G x4 67 51G x4 67 50S x4 67 51S x4 27S 59S 27S 59S 27S 59S Batt Test Cap Test Figure 3 6 Trip Circuit Supervision Voltage Inputs n a Current Inputs n a Disable Map Pickup LED 74TCS n Self Reset The TCS...

Страница 289: ...TE The use of some functions are mutually exclusive 67 50 x4 67 51 x4 67 50 x4 67 50 x4 67 51 x4 67 51 x4 64 H 27 59 27 59 x4 27 59 x4 27 59 x4 47 x2 79 59N x2 Note Example shows Voltage Config Van Vbn Vcn 81 x4 67 50G x4 67 51G x4 67 50S x4 67 51S x4 27S 59S 27S 59S 27S 59S Batt Test Cap Test Figure 3 7 Magnetising Inrush Detector Voltage Inputs n a Current Inputs IL1 IA IL2 IB IL3 IC Disable Map...

Страница 290: ...ring equipment or complex connections 4 2 Synchronising The optional Synchronising function provides Re closure modes which utilise the synchronising voltages to impose restrictions on the closing of the recloser to allow co ordination with other devices in the network Correct operation of the application of blocking for all combinations of live and dead line and bus voltage should be checked for ...

Страница 291: ... finding but is not used in service Setting Pickup Reset CS phase leading CS phase lagging CS Slip Following controller commissioning when the circuit is live with test connections removed the Synchronising Meters should be checked to ensure primary voltages are correct With the circuit breaker closed Bus and Line voltages should have equal magnitudes differential voltage and phase difference shou...

Страница 292: ...er timing without the use of external measuring equipment or complex connections 4 4 Quick Logic If this functionality is used the logic equations may interfere with testing of other protection functions in the relay The function of the Quick Logic equations should be tested conjunctively with connected plant or by simulation to assess suitability and check for correct operation on an individual b...

Страница 293: ...ach element 5 2 Maintenance Relay failure will be indicated by the Protection Healthy LED being off or flashing A message may also be displayed on the LCD In the event of failure contact the local Siemens office or the manufacturer see defect report sheet in section 5 3 The relay unit comprises an outer case and the withdrawable relay element The relay should be returned as a complete unit No atte...

Страница 294: ... instruments are enabled Remove all instruments from the default list and only add those that are required See Section 2 Settings and Instruments Cannot communicate with the relay Check that all of the communications settings match those used by ReyDisp Evolution Check that the Tx and Rx fibre optic cables are connected correctly Tx Rx and Rx Tx Check that all cables modems and fibre optic cables ...

Страница 295: ...products See prices in PMD Type of failure Device or module does not start up Mechanical problem Overload Sporadic failure Knock sensitive Transport damage Permanent failure Temperature caused failure Failure after ca hrs in use Repeated breakdown Failure after firmware update Error description Display message use separated sheet for more info Active LED messages Faulty Interface s which Wrong mea...

Страница 296: ... Commissioning Maintenance Guide 2010 Siemens Protection Devices Limited Chapter 6 Page 70 of 73 Siemens Protection Devices Ltd PO Box 8 Hebburn Tyne Wear NE31 1TZ England Telephone 0191 401 5555 Fax 0191 401 5575 ...

Страница 297: ... press and hold CANCEL press and hold TEST press and hold ENTER then should appear While still pressing ENTER release the other keys Navigate to the software information screen using the TEST RESET button The following typical information uniquely identifies a particular relay model Older relay models may only display a subset of this information 6 2 2 Overall Software Information Software Art No ...

Страница 298: ...ect settings being applied The attachments are password protected self extracting zip files to prevent email systems discarding them or modifying them which should be saved with the EX extension renamed to be EXE The password that is applied to this zip file is REYROLLE in capital letters 6 3 Loading code using front usb port New firmware software may be loaded via the USB port on the front Fascia...

Страница 299: ... However the default and maximum baud rate of 460800 bits sec is preferred The download procedure has been tested on Windows 98 NT and XP On Windows 98 it may be necessary to add the line shell C COMMAND COM C e 4056 p to the file C CONFIG SYS to increase the environment space When the relay restarts messages appear on the LCD to confirm the number of I O modules fitted please press the ENTER key ...

Страница 300: ...ited consent While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 2010 Siemens Protection Devices Limited 7SR224 Recloser Controller Overcurrent Relay Document Rele...

Страница 301: ...25 2 13 2 Derived NVD Voltage 25 2 14 Negative Phase Sequence Overvoltage 47 25 2 15 Under Over Frequency 81 26 Section 3 CT Requirements 27 3 1 CT Requirements for Overcurrent and Earth Fault Protection 27 3 1 1 Overcurrent Protection CTs 27 3 1 2 Earth Fault Protection CTs 27 3 2 CT Requirements for High Impedance Restricted Earth Fault Protection 28 Section 4 Control Functions 29 4 1 Auto reclo...

Страница 302: ...ult on Interconnected Network 18 Figure 2 7 1 Earth Fault Angles 19 Figure 2 8 1 Balanced and Restricted Earth fault protection of Transformers 20 Figure 2 8 2 Composite Overcurrent and Restricted Earth fault Protection 21 Figure 2 11 1 Thermal Overload Heating and Cooling Characteristic 22 Figure 2 13 1 NVD Application 24 Figure 2 13 2 NVD Protection Connections 24 Figure 2 15 1 Load Shedding Sch...

Страница 303: ...ow RADIAL SUBSTATION Start generators Select alternate settings group Local Generation Industrial system draws power from grid system during normal operation Relays normally use settings group 1 On loss of mains Local generation switched in Non essential loads tripped Relays on essential circuits switched to settings group 2 to reflect new load and fault currents Non essential loads Trip non essen...

Страница 304: ... the 7SR224 to provide indication of alarm or fault conditions from an external device which does not itself provide indication or recording facilities The Binary Inputs are mapped to LED s waveform storage trigger and binary outputs Note that external device outputs which require high speed tripping should be wired to a binary input to provide LED indication and also have a parallel connection wi...

Страница 305: ...input due to its higher minimum pickup voltage As a guide to suitable degrees of enhanced immunity we have adopted the parameters laid down in U K standard EATS 48 4 This standard identifies two levels of immunity Category ESI 1 may be adopted for connections which do not include significant wiring runs or cabling outside the relay enclosure Category ESI 2 should be used for connections which incl...

Страница 306: ...7SR224 Argus Applications Figure 1 2 2 Binary Input Configurations Providing Compliance with EATS 48 4 Classes ESI 1 and ESI 2 2010 Siemens Protection Devices Limited Chapter 7 Page 7 of 50 ...

Страница 307: ...ut Each LED can be defined as Self or Hand Reset Hand reset LEDs are used where the user is required to expressly acknowledge the change in status e g critical operations such as trips or system failures Self reset LEDs are used to display features which routinely change state such as Circuit Breaker open or close The status of hand reset LEDs is retained in capacitor backed memory in the event of...

Страница 308: ...sely proportional to the Fault Current being measured This makes them particularly suitable to grading studies where it is important that only the Relay s closest to the fault operate Discrimination can be achieved with minimised operating times To optimise the grading capability of the relay additional time multiplier Follower DTL Fig 2 1 1 or Minimum Operate Time Fig 2 1 2 settings can be applie...

Страница 309: ...id areas or where the system uses high values of earthing resistor reactance and the fault current detected in the phase conductors will be limited 2 1 1 Selection of Overcurrent Characteristics Each pole has two independent over current characteristics Where required the two curves can be used To produce a composite curve To provide a two stage tripping scheme Where one curve is to be directional...

Страница 310: ...able for a short time after which the insulation fails again The same phenomenon has occurred in compound filled joint boxes or on clashing overhead line conductors The repeating process of the fault can cause electromechanical disc relays to ratchet up and eventually trip the faulty circuit if the reset time of the relay is longer than the time between successive faults To mimic an electromechani...

Страница 311: ...must be above the protection over current settings Close in short circuit faults may also cause the AVR to reach its safety limits for supplying maximum excitation boost in the order of several seconds and this will result in AVR internal protection devices such as diode fuses to start operating The generator excitation will then collapse and the situation will be the same as when no AVR was prese...

Страница 312: ... in blocked overcurrent protection schemes These protection schemes are applied to protect substation busbars or interconnectors etc Blocked overcurrent protection provides improved fault clearance times when compared against normally graded overcurrent relays The blocked overcurrent scheme of busbar protection shown in Figure 2 2 2 illustrates that circuit overcurrent and earth fault protection r...

Страница 313: ... and a safety margin a minimum time delay of 100ms is recommended This type of scheme is very cost effective and provides a compromise between back up overcurrent busbar protection and dedicated schemes of busbar protection Instantaneous elements are also commonly applied to autoreclose schemes to grade with downstream circuit reclosers and maximise the probability of a successful auto reclose seq...

Страница 314: ... is used the CT magnetising current losses are also reduced by a factor of three If a core balance CT is applied to a network where high earth fault currents can occur these currents can cause saturation of the core leading to reduced CT output In this case it is recommended that the SEF protection is applied with support from Earth Fault protection with less sensitive settings This lower level of...

Страница 315: ...d the Maximum Torque Angle MTA as an analogy to older Electro mechanical type relays Example Expected fault angle is 30º Current lagging Voltage so set Directional Angle to 90 30 60 A fault is determined to be in the selected direction if its phase relationship lies within a quadrant 85 either side of the Characteristic Angle setting Current operating quantity Characteristic Angle Volts polarising...

Страница 316: ...n flow in both directions at these points The forward direction is defined as being away from the busbar and against the direction of normal load current flow These forward looking IDMTL elements can have sensitive settings applied i e low current and time multiplier settings Note that 7SR22 relays may be programmed with forward reverse and non directional elements simultaneously when required by ...

Страница 317: ... directions closed ring circuits can be set to grade correctly whether fault current flows in a clockwise or counter clockwise direction i e it may be practical to use only one relay to provide dual directional protection 2 6 1 2 Out of 3 Logic Sensitive settings can be used with directional overcurrent relays since they are directionalised in a way which opposes the flow of normal load current i ...

Страница 318: ...y the system impedances Example Expected fault angle is 45 i e residual current lagging residual voltage therefore 67G Char Angle 45 However directional earth elements can be selectable to use either ZPS or NPS Polarising This is to allow for the situation where ZPS voltage is not available perhaps because a 3 limb VT is being used Care must be taken as the Characteristic Angle will change if NPS ...

Страница 319: ...cted Earth fault protection of Transformers Balanced Earth Fault Restricted Earth Fault The calculation of the value of the Stability Resistor is based on the worst case where one CT fully saturates and the other balancing CT does not saturate at all A separate Siemens Protection Devices Limited Publication is available covering the calculation procedure for REF protection To summarise this The re...

Страница 320: ...o earth in a non effectively earthed system can result in a zero sequence current of up 3 times phase charging current flowing through the relay location The step change from balanced 3 phase charging currents to this level of zero sequence current includes transients It is recommended to allow for a transient factor of 2 to 3 when determining the limit of charging current Based on the above consi...

Страница 321: ... low load situation exists For this reason simple Definite Time Lag DTL elements may be used For example once it has been determined that fault current has been broken the CB is open and no current flows an auto isolation sequence may safely be initiated 2 11 Thermal Overload 49 The element uses measured 3 phase current to estimate the real time Thermal State θ of cables or transformers The Therma...

Страница 322: ...e elements should be set to values safely above below that where a normal system voltage excursion can be expected The switchgear plant design should be considered The Dead level may be very near to the live level or may be significantly below it The variable hysteresis setting allows the relay to be used with all types of switchgear System over voltages can damage component insulation Excessive v...

Страница 323: ...o 3 times the normal phase earth voltage level If Neutral Overvoltage protection is used it must be suitably time graded with other protections in order to prevent unwanted tripping for external system earth faults OC EF Transformer Feeder Earth fault EHV HV HV MV HV CB Tripped by local protection MV CB tripped by 1 Feeder unit protection or 2 Intertrip from HV feeder protection or 3 NVD protectio...

Страница 324: ...ng rotating plant such as motors and generators However such protection is almost universally based on detecting NPS Current rather than Voltage This is because the NPS impedance of motors etc is much less than the Positive Phase Sequence PPS impedance and therefore the ratio of NPS to PPS Current is much higher than the equivalent ratio of NPS to PPS Voltage NPS Voltage is instead used for monito...

Страница 325: ... shed in stages until the frequency stabilises and returns to an acceptable level The 7SR24 has six under over frequency elements An example scheme may have the first load shedding stage set just below the nominal frequency e g between 49 0 49 5Hz A time delay element would be associated with this to allow for transient dips in frequency and to provide a time for the system regulating equipment to...

Страница 326: ...ous Overcurrent a For industrial systems with requirements as for i d m t l relays item a above a class 10P10 or 20 b For utilities as for b above a class 5P10 or 20 with rated burden to suit the load Note Overcurrent factors do not need to be high for definite time protection because once the setting is exceeded magnitude accuracy is not important Often however there is also the need to consider ...

Страница 327: ... possible have identical turns ratios The knee point voltage of each CT should be at least 2 x Vs The knee point voltage is expressed as the voltage applied to the secondary circuit with the primary open circuit which when increased by 10 causes the magnetizing current to increase by 50 Where the REF function is used then this dictates that the other protection functions are also used with class P...

Страница 328: ...e unnecessary lockouts The Sequence Fail Timer provides an overall maximum time limit on the ARC operation It should therefore be longer than all the set delays in a complete cycle of ARC sequences trip delays Deadtimes Reclaim Time etc Generally this will only be exceeded if the circuit breaker has either failed to open or close Since large fault currents could potentially damage the system durin...

Страница 329: ...quirement Settings shall provide four phase fault recloses two instantaneous and two delayed and only two recloses for faults detected by the SEF protection Proposed settings include CONTROL LOGIC AUTORECLOSE PROT N 79 P F Inst Trips 50 1 79 P F Delayed Trips 51 1 79 SEF Delayed Trips 51SEF 1 CONTROL LOGIC AUTORECLOSE CONFIG 79 Num Shots 4 CONTROL LOGIC AUTORECLOSE CONFIG P F SHOTS 79 P F Prot n T...

Страница 330: ... Inst 79 P F Prot n Trip 3 Delayed 79 P F Prot n Trip 4 Delayed The above settings are suitable at values of fault current above I2 however were a fault to occur with a current value between I1 and I2 this would be detected by the 51 1 element only As Prot n Trip 1 Inst then the relay would trip and reclose whereas it is required to lockout for this occurrence To provide a lockout for the above fa...

Страница 331: ...ion during a Manual Close operation can be specified separately Set MC Split Mode to SS Similarly the device can be set to use Close On Zero COZ for either or both modes following a split detection 4 2 2 Rated Voltage Setting V T Connection The Vx analogue voltage input is used for the synchronising Bus voltage and can be either Van Vbn Vcn Vab Vbc or Vca The voltage is compared to the respective ...

Страница 332: ...which will usually be the second end to close thus operating in Check Sync mode can allow Dead Line Close after a further delay thus charging the line if the first end fails to close 4 2 6 Slip and Phase Angle Relationship Slip frequency is defined as the difference between two frequencies Where a slip frequency exists between two separate systems during a slip cycle the two voltage vectors will b...

Страница 333: ...o achieve the same ends Note in check synchronising mode the valid phase difference window for closing is actually twice the phase angle setting value because the valid Check Sync close can be given when the phase angle is either decreasing or increasing 4 2 8 System Synchronising Settings The changeover to system synchronising operation will occur automatically if set if the two systems become as...

Страница 334: ...rms is directly related to the frequency difference or slip between them The change in phase angle θ Δ for a system with 1Hz slip is 360º in 1 second Thus Change in phase angle 360 Slip Δθ sec The distance the phasor can travel during the breaker close time can therefore be given by CB t 360 Slip Δθ where tCB is the breaker close time in seconds Using the equation given in section 2 7 for check sy...

Страница 335: ...eder can be avoided by the sequential closure of the NOP TIE Recloser and multiple Line Reclosers to back feed supply and isolate the faulted section This sequence can be triggered by Loss Of Voltage to automatically and relatively quickly restore the power to healthy sections and thus limit the disruption to Customers and minimising the Customer Minutes Lost CML metric LOV Automation should be co...

Страница 336: ... see LOV on its Feeder 1 side and will have normal system voltage available on its Feeder 2 side if the NOP s LOV Element sees permanent LOV on either side i e lasting for more than a user set LOV Action Delay e g 75 seconds to give a grading margin to allow time for Reclosers 1A and 1B to open at for example 60 seconds then the NOP LOV Element will take action and issue a NOP Close A type NOP Tie...

Страница 337: ...re intended for alarm indication purposes It should be noted that in a typical interconnected system at each feeder end there could be up to 3 NOP TIE at that node anyone of which could be closed to back feed supply to that feeder therefore there must be a user set pecking order The NOP LOV Action Delay timer User settings with grading margins e g 75 s 80 s 85 s ensures that the optimum reconfigur...

Страница 338: ...imed state for loss of voltage to start any LOV Action The enable disable setting LOV Primed Interlock can be used to disable the voltage check but the relevant open closed state is still required The NOP Tie device includes a LOV Memory Time which provides a reset delay for the primed condition when voltage conditions of dead both sides is applied This allows for the fact that during a fault the ...

Страница 339: ...eating and failure could result the Single pole Trip Three pole Lockout Mode B provides for this by allowing single pole trips followed by reclose but issues only three pole trips when a reclose is not started An additional subsequent three pole trip is issued in this Mode if single pole autoreclose fails If Single pole Trip is set then each Recloser can each be independently Tripped and Closed as...

Страница 340: ...ential the rest via the multiple Ground paths 4 4 2 Triple Single Modes of Operation The User may select one of three modes for the Single Triple operation to suit the system load characteristics and thus avoid subjecting loads to conditions which could cause damage to plant The settings of the Trip Reclose Lockout operation modes for the Recloser provide for three Modes of Trip Sequences to Locko...

Страница 341: ...uld be performing a Delayed Trip this is not an issue one pole will initiate the tripping action s and if unsuccessful eventually both sequences will be doing delayed Also different Dead times could be applicable on each of the poles at that point in the two sequences but Close commands issued by the Sequences are co ordinated so that both poles close at the same time In this mode the Controller p...

Страница 342: ...rotection To re supply the disconnected loads from the remaining incomer CB3 is closed If the line fault occurs on incomer 1 it must be confirmed that CB 1 has opened before CB3 can be closed The relay on incomer 1 confirms that a trip has been issued to CB1 e g Binary Output 2 that CB 1 has opened e g Binary Input 1 and that no current flows in the circuit e g 37 1 Virtual 1 Incomer 1 Relay is Co...

Страница 343: ...eaker fail feature For some systems only the first will be used and the CB Failure output will be used to back trip the adjacent CB s On other systems however this output will be used to re trip the local CB to minimise potential disruption to the system if possible via a secondary trip coil and wiring The second CB Failure stage will then be used to back trip the adjacent CB s Figure 5 1 1 Circui...

Страница 344: ...peration Failure of CB to trip Reset of CBF elements does not occur Backtrip Operation Backtrip Trip Relay CB Operate Time Stage 1 CBF Timer Backtrip 120ms Figure 5 1 2 Single Stage Circuit Breaker Fail Timing Stage 1 CBF Timer Retrip 120ms Failed CB Retrip Operation 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 360 340 System Fault Relay Operation and CBF Timer Started Main Trip Relay ...

Страница 345: ...oltage to restrain the CTS algorithm as show in the accompanying table NPS Current NPS Voltage Decision Setting Setting System Fault Setting Setting CT Failure Table 5 1 Determination of VT Failure 1 or 2 Phases Following a CT Failure there should be little or no NPS voltage Perhaps 0 1 x Vn as a maximum Operation is subject to a time delay to prevent operation for transitory effects A 3 phase CT ...

Страница 346: ...le problems with using NPS quantities due to load imbalances These would also generate significant levels of NPS current and so possibly cause a VT failure to be missed This problem can be overcome by careful selection of settings however setting the NPS current threshold above the level expected for imbalance conditions If a failure occurs in all 3 Phases of a Voltage Transformer then there will ...

Страница 347: ...he circuit breaker is operating the input is given a 0 4s Drop off Delay in the INPUT CONFIG BINARY INPUT CONFIG menu To provide an alarm output a normally open binary output is mapped to 74TCS n 5 4 1 Trip Circuit Supervision Connections The following circuits are derived from UK ENA S15 standard schemes H5 H6 and H7 For compliance with this standard Where more than one device is used to trip the...

Страница 348: ...s not provide pre closing supervision of the connections and links between the tripping contacts and the circuit breaker and may not therefore be suitable for some circuits which include an isolating link Scheme 3 Comprehensive BI ve ve BO BI ve ve TRIP COIL 52a 52b Circuit Breaker TRIP CCT n FAIL BO 1 BO n Remote Alarm 7SR24 R R H7 Scheme Notes BI 19V 48 110 220V supply R 3K3 typical Figure 5 4 3...

Страница 349: ...t Transformers but can give delayed operation for Switch on to Earth Fault conditions Sum Composite 2nd Harmonic content derived for all 3 phases and then compared to Fundamental current for each individual phase Provides good compromise between Inrush stability and fast fault detection Table 5 4 Magnetic Inrush Bias 5 6 Broken Conductor Load Imbalance 46BC Used to detect an open circuit condition...

Страница 350: ...9 180 524 24 71 Charges depending on provider E mail support energy siemens com Power Distribution Division Order No C53000 G7076 C11 2 Printed in Fürth Printed on elementary chlorine free bleached paper All rights reserved Trademarks mentioned in this document are the property of Siemens AG its affiliates or their respective owners Subject to change without prior notice The information in this do...

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